prioritized external "freeze" on internal "force", added unfreeze method
prioritized external "freeze" on internal "force", added unfreeze method

abow/Babylon.js,Temechon/Babylon.js,NicolasBuecher/Babylon.js,Kesshi/Babylon.js,jbousquie/Babylon.js,Hersir88/Babylon.js,Kesshi/Babylon.js,Temechon/Babylon.js,Kesshi/Babylon.js,NicolasBuecher/Babylon.js,abow/Babylon.js,sebavan/Babylon.js,RaananW/Babylon.js,RaananW/Babylon.js,sebavan/Babylon.js,Hersir88/Babylon.js,Temechon/Babylon.js,BabylonJS/Babylon.js,RaananW/Babylon.js,sebavan/Babylon.js,jbousquie/Babylon.js,Hersir88/Babylon.js,BabylonJS/Babylon.js,NicolasBuecher/Babylon.js,abow/Babylon.js,BabylonJS/Babylon.js,jbousquie/Babylon.js