Update to playtest_beta

• Panorama now has sass/scss support 🎉

• Redirection cubes are now unfrozen when touched by an explosive force. They freeze after a short period of time when redirecting lasers.

• Rebaked shadows on the elevator model, fixing a couple artifacts on it

• Pause menu now has a fade-in effect

• Some work on dx11 support in hammer, not fully functional yet

• Fixed some filesysteam threading issues

• Fixed crash when turrets shoot a func_breakable

• Fixed CSM shadows

• setpos no longer moves you down 64 units

• snd_mute_losefocus can now be changed in the console

• rocket turret model from p1 is now packed in the game