issue #4118:  improve performance.
issue #4118:  improve performance. add Node and Sprite physicsSetPosition and physicsSetRotation method.
issue #4118:  edit contact test and fix node setPhysicsBody bug
issue #4118:  delete physicsSetPosition/Rotation method and add physics position/rotation tag.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into iss4118_physical_performance_improve
issue #4118:  set body update after physics step.
Merge pull request #5479 from boyu0/iss4118_physical_performance_improve

issue #4118: improve physical performance.