fix serverside variable compare

various code impovements

added roblox_cam_transparency to change if character should turn transparent when camera gets close, added roblox_cam_ofs_dist_mult to allow factoring camera distance into camera offset

fix shiftlock when shiftlockcentertarget is disabled

prevent shiftlockcentertarget from affecting normal thirdperson camera (non-shiftlock)

respect changes to convar roblox_cam_angle_y and roblox_cam_angle_p from outside roblox camera

add cvar roblox_cam_face_velocity if player should face velocity, not input. add cvar roblox_cam_face_speed to change how fast player faces input/velocity

fix opening spawnmenu in firstperson

improve vehicle aiming

added camera thirdperson offsets, fixed firstperson when server host was in thirdperson, prevent camera from going through/partially inside walls