Add SetAnimationMode to Active or Deactive Animation mode
Add SetDeviationCoefficient function to set deviation coefficient for Amnimation mode
Add SetPerspectiveMode to Active or Deactive perspective view
Add SetCamera function to set a camera in a perspective view
Add SetCameraAngle function to set angle of a camera in a perspective view
Add RevolByAngle function to build revolved entity with angle degree
Improve Boolean opration
Improve import/export for STEP or IGES
Optimize code for display a 3D solid
Fix a bug for import STEP or IGES
Fix some bug for view