remove AppObject

This reverts commit 13c113fbe042799d6dc3989c5c5c731650ffb38e.
remove AppObject, AppSQL, AppSearchObject
remove callers of AppObject
remove callers of AppObject
remove descriptions of AppObject
remove AppObject
remove AppObject
remove getMetaData for AppObject
remove HelperAppObject
remove AppSQL
remove AppSearchObject
Merge branch 'feature/removeAppObject' into develop

eliminate AppObject, AppSQL, AppSearchObject