Rotate a vector around another point.
CL_Vec2<double >&amVec2< dled >gt;::rotateateate( const CL_Vec2 < dle > &amp; hotspot, const CL_Angle & angle); static CL_Vec2<double > Vec2< dle >>gt;otrotate( const CL_Vec2 < dle > &amp; vector, const CL_Vec2 < dle > &amp; hotspot, const CL_Angle & angle);