get device frequency and name.
Merge branch 'mergecocos3.0' of github.com:houguohua/cocos3d-x into mergecocos3.0
ios adapter
iOS device adapter
Merge branch 'mergecocos3.0' of github.com:lvlonggame/cocos3d-x into mergecocos3.0
adapter
adapter
Merge branch 'mergecocos3.0' of github.com:lvlonggame/cocos3d-x into mergecocos3.0
Merge pull request #34 from lvlonggame/mergecocos3.0

adapter
Merge branch 'mergecocos3.0' of github.com:houguohua/cocos3d-x into mergecocos3.0

Conflicts:
	cocos3d/C3DDeviceAdapter_ios.mm