1. -Remove useless files: 2DFanObject and manualrenderobject2d
2. -Remove batchrendergroup, because it doesn't make sense. Use the RenderGroup instead for any situation.
1. -Make model is not a renderobject.
1. -Remove renderobject.
1. Make sprite is a derived class of Node3D
1. -Upgrade beats lib.
2. -Make Static mesh is a Node3D
Merge branch 'master' of https://github.com/beyondlwm/FCEngine

Conflicts:
	Resource/UniverseScene.bcf
1. -Temp fix.
Merge branch 'master' of https://github.com/beyondlwm/FCEngine