resolution ratio auto change
extensions for cocos3.0
ios compile and run ok -a
delete useless res
add signature for apk
Merge branch 'mergecocos3.0' of https://github.com/houguohua/cocos3d-x into mergecocos3.0
add armeabi
add digital signature
delete 2010 sln in root
Merge branch 'mergecocos3.0' of https://github.com/houguohua/cocos3d-x into mergecocos3.0

Conflicts:
	EngineDemo/Classes/AppDelegate.cpp
	EngineDemo/Classes/TestLayer.h
	EngineDemo/proj.ios/EngineDemo.xcodeproj/project.pbxproj
	cocos3d/C3DRenderSystem.cpp