Added functions to remove and to extract a child when only having ptr to object (not shared_ptr)
Merge branch 'develop' of https://github.com/Team-Innis/UtH-Engine into develop

Conflicts:
	include/UtH/Engine/Object.hpp
Changed Object update loop so children can be added during update, Added debug error for faulty object deletion
added Constructor to GameObject, which takes multiple tags
moved assert into right place
fixed RemoveChild(Object*) function
Updated pmath
Cleaned stuff.
TODO: fix anchor point setting & add way to change banner size
Started implementing better FileManager on android
Fixed particle bugs
Creating directories and files now works properly on android.

Fixed/implemented everything so that it works on android. Windows filemanager still needs to be changed.
Also now always opens the files as read/write
Banner sized ad works properly.
Cleaned header and changed GetFileSize to return the current file size
Fixed windows implementation of FileManager
Merge branch 'feature/FileManager_overhaul' into develop
fixed testscene
removing children during update should work now
fixed testscene
Added missing implementation to RigidBody
Full screen ads work.
Now to optimize them for better usablity