Overhaul gradle build

- Focus of this commit is to have modern gradle build.
- Migrate most of a plugin configurations from dsl
  into buildSrc.
- This fixes issues with existing docs build.
- Allows to sign files so that we have that part
  done for central in a build.
- We can skip publishing samples.
- We're able to share similar logic for modules
  which are meant for publish or just being samples.
- It's easier to upgrade gradle versions without
  getting various build issues.
- Relates #1143

spring-statemachine-data/build.gradle

@@ -1,58 +0,0 @@
-description = 'Spring State Machine Data Common'
-
-project('spring-statemachine-data-jpa') {
-	apply from: "$rootDir/gradle/java-test-fixtures.gradle"
-	description = 'Spring State Machine Data Jpa'
-
-	dependencies {
-		api project(':spring-statemachine-data-common')
-		api 'org.springframework:spring-orm'
-		testImplementation project(':spring-statemachine-test')
-		testImplementation(testFixtures(project(":spring-statemachine-data-common")))
-		testImplementation(testFixtures(project(":spring-statemachine-core")))
-		testImplementation 'io.projectreactor:reactor-test'
-        optional 'jakarta.persistence:jakarta.persistence-api'
-		testImplementation 'org.hsqldb:hsqldb'
-		testImplementation 'org.springframework.boot:spring-boot-starter-test'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-jpa'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
-	}
-}
-
-project('spring-statemachine-data-redis') {
-	apply from: "$rootDir/gradle/java-test-fixtures.gradle"
-	description = 'Spring State Machine Data Redis'
-
-	dependencies {
-		api project(':spring-statemachine-data-common')
-		api 'org.springframework.data:spring-data-redis'
-		testImplementation project(':spring-statemachine-test')
-        optional 'jakarta.persistence:jakarta.persistence-api'
-		testImplementation(testFixtures(project(":spring-statemachine-data-common")))
-		testImplementation(testFixtures(project(":spring-statemachine-core")))
-		testImplementation 'io.projectreactor:reactor-test'
-		testImplementation 'org.springframework.boot:spring-boot-starter-test'
-		testRuntimeOnly 'org.apache.commons:commons-pool2'
-		testRuntimeOnly 'redis.clients:jedis'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-redis'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
-	}
-}
-
-project('spring-statemachine-data-mongodb') {
-	apply from: "$rootDir/gradle/java-test-fixtures.gradle"
-	description = 'Spring State Machine Data MongoDB'
-
-	dependencies {
-		api project(':spring-statemachine-data-common')
-		api 'org.springframework.data:spring-data-mongodb'
-		testImplementation project(':spring-statemachine-test')
-        optional 'jakarta.persistence:jakarta.persistence-api'
-		testImplementation(testFixtures(project(":spring-statemachine-data-common")))
-		testImplementation(testFixtures(project(":spring-statemachine-core")))
-		testImplementation 'io.projectreactor:reactor-test'
-		testImplementation 'org.springframework.boot:spring-boot-starter-test'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-mongodb'
-		testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
-	}
-}

spring-statemachine-data/jpa/spring-statemachine-data-jpa.gradle

@@ -0,0 +1,20 @@
+plugins {
+	id 'org.springframework.statemachine.module'
+}
+
+description = 'Spring State Machine Data Jpa'
+
+dependencies {
+	management platform(project(":spring-statemachine-platform"))
+	api project(':spring-statemachine-data-common')
+	api('org.springframework:spring-orm')
+	optional 'jakarta.persistence:jakarta.persistence-api'
+	testImplementation project(':spring-statemachine-test')
+	testImplementation(testFixtures(project(':spring-statemachine-data-common')))
+	testImplementation(testFixtures(project(':spring-statemachine-core')))
+	testImplementation 'io.projectreactor:reactor-test'
+	testImplementation 'org.hsqldb:hsqldb'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-jpa'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
+}

spring-statemachine-data/mongodb/spring-statemachine-data-mongodb.gradle

@@ -0,0 +1,18 @@
+plugins {
+	id 'org.springframework.statemachine.module'
+}
+
+description = 'Spring State Machine Data MongoDB'
+
+dependencies {
+	management platform(project(":spring-statemachine-platform"))
+	api project(':spring-statemachine-data-common')
+	api 'org.springframework.data:spring-data-mongodb'
+	testImplementation project(':spring-statemachine-test')
+	testImplementation(testFixtures(project(':spring-statemachine-data-common')))
+	testImplementation(testFixtures(project(':spring-statemachine-core')))
+	testImplementation 'io.projectreactor:reactor-test'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-mongodb'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
+}

spring-statemachine-data/redis/spring-statemachine-data-redis.gradle

@@ -0,0 +1,21 @@
+plugins {
+	id 'org.springframework.statemachine.module'
+}
+
+description = 'Spring State Machine Data Redis'
+
+dependencies {
+	management platform(project(":spring-statemachine-platform"))
+	api project(':spring-statemachine-data-common')
+	api 'org.springframework.data:spring-data-redis'
+	testImplementation project(':spring-statemachine-test')
+	testImplementation(testFixtures(project(':spring-statemachine-data-common')))
+	testImplementation(testFixtures(project(':spring-statemachine-core')))
+	testImplementation 'io.projectreactor:reactor-test'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testRuntimeOnly 'org.apache.commons:commons-pool2'
+	testRuntimeOnly 'redis.clients:jedis'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-data-redis'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
+	testImplementation 'io.projectreactor.tools:blockhound'
+}

spring-statemachine-data/spring-statemachine-data.gradle

@@ -0,0 +1,21 @@
+plugins {
+	id 'org.springframework.statemachine.module'
+}
+
+description = 'Spring State Machine Data Common'
+
+dependencies {
+	management platform(project(":spring-statemachine-platform"))
+	api project(':spring-statemachine-core')
+	api project(':spring-statemachine-kryo')
+	api 'org.springframework.data:spring-data-commons'
+	api 'com.fasterxml.jackson.core:jackson-core'
+	api 'com.fasterxml.jackson.core:jackson-databind'
+	testImplementation (project(':spring-statemachine-test'))
+	testFixturesImplementation (project(':spring-statemachine-test'))
+	testImplementation(testFixtures(project(':spring-statemachine-core')))
+	testImplementation 'io.projectreactor:reactor-test'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testFixturesImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testRuntimeOnly 'org.springframework.boot:spring-boot-starter-web'
+}