Add Magic Link Sample

Closes gh-312

servlet/spring-boot/java/authentication/one-time-token/magic-link/build.gradle

@@ -0,0 +1,34 @@
+plugins {
+	id 'java'
+	alias(libs.plugins.io.spring.dependency.management)
+	alias(libs.plugins.org.springframework.boot)
+}
+
+java {
+	toolchain {
+		languageVersion = JavaLanguageVersion.of(17)
+	}
+}
+
+repositories {
+	mavenCentral()
+	maven { url "https://repo.spring.io/milestone" }
+	maven { url "https://repo.spring.io/snapshot" }
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-security'
+	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	implementation 'org.springframework.boot:spring-boot-starter-mail'
+	implementation 'org.thymeleaf.extras:thymeleaf-extras-springsecurity6'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'org.springframework.security:spring-security-test'
+	testImplementation 'com.icegreen:greenmail-junit5:2.0.1'
+	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+	runtimeOnly 'org.springframework.boot:spring-boot-docker-compose'
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}