GH-9 - Rename core, public abstractions from Module to ApplicationModule.

Remove obsolete @since tags and deprecations.

spring-modulith-api/src/main/java/org/springframework/modulith/ApplicationModule.java

@@ -27,7 +27,7 @@ import java.lang.annotation.Target;
  */
 @Target({ ElementType.PACKAGE, ElementType.ANNOTATION_TYPE })
 @Retention(RetentionPolicy.RUNTIME)
-public @interface Module {
+public @interface ApplicationModule {
 
 	String displayName() default "";
 

spring-modulith-api/src/main/java/org/springframework/modulith/NamedInterface.java

@@ -22,7 +22,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 /**
- * Annotation to mark a package as named interface of a {@link Module} (either implicit or explicitly annotated).
+ * Annotation to mark a package as named interface of a {@link ApplicationModule} (either implicit or explicitly annotated).
  *
  * @author Oliver Drotbohm
  */