Documented JPAPersistenceService
Merge branch 'master' of https://github.com/Appverse/appverse-web.git

Conflicts:
	modules/backend/core/persistence/src/main/java/org/appverse/web/framework/backend/persistence/services/integration/IJPAPersistenceService.java
	modules/backend/core/persistence/src/main/java/org/appverse/web/framework/backend/persistence/services/integration/impl/live/JPAPersistenceService.java