Integration native build to sample

- This adds a way to build native binary for a sample which
  were missed from original gradle work.
- Relates #470

spring-shell-samples/spring-shell-samples.gradle

@@ -1,6 +1,7 @@
 plugins {
 	id 'org.springframework.shell.sample'
 	id 'org.springframework.boot'
+	id 'org.graalvm.buildtools.native'
 }
 
 description = 'Spring Shell Samples'
@@ -10,3 +11,10 @@ dependencies {
 	implementation project(':spring-shell-starter-jna')
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
+
+// TODO: workaround until boot's aot plugin automatically extends
+//       from all super configurations like graalvm's plugin does.
+configurations {
+	aotCompileClasspath.extendsFrom management
+	aotRuntimeClasspath.extendsFrom management
+}