Rotate a vector around another point.
CL_Vec2<Type>&amVec2<ype >gt;::rotateateate( const CL_Vec2 < Type > & hotspot, const CL_Angle & angle); static CL_Vec2<Type&gCL_Vec2<ype &g >::rotrotate( const CL_Vec2 < Type > & vector, const CL_Vec2 < Type > & hotspot, const CL_Angle & angle);