Remove:
- CryCommon/CryExtension/*
- CryCommon/Serialization/*
- Sandbox/Plugins/EditorCommon/QPropertyTree/*
- All related CryCommon interfaces
- All CrySystem implementations
- Various related Editor classes
* Remove Level Inspector from Prefab mode, and integrate the same behavior in the Entity Inspector
* Show prefab name in level entity row of the Outliner. Allow Ui Handlers to prevent renaming.
* Separate setting the prefab's template path and the container entity name.
* Disable reparenting to root level
* Disable the ability to rename the level entity.
* Fixes as per Ram's review