Update #16 - Gun saves now save after quit, M2 Browning, PKM, and more

Main Features:
-Gun saves should now save after exit
-M2 Browning, PKM
-You can now slide lock all pistols/ bolt catch some rifles (Pull handle and hold X with left hand)

New:
-gun vault saves now work after you exit the game
-added M2 Browning under HMG
-added PKM under MMG
-added new caliber round 7.62x54mmR (for PKM)
-added new mannual slide stop/ bolt catch mechanism for all pistols and some guns with bolt catch function (added for all pistols, and scar guns and L86.) Pull the charging handle and hold X with left hand to mannually activate bolt catch
-added a number of new gunshot sounds
-set pixel density to 90% default for quest, for fps improvement
-added a new glue mode for glue gun, teal. It will now glue both fixed bond length and fixed orientation, allowing you to build more stable stuff with it
-simplified the inventory slots to 6 slots for better comfort
-added a few iron sights that were missing in the item spawner
-added intermediate loading area when starting game, to reduce chance of crashing on start
-added oculus color correction for quest
-removed tutorial area, will be reworked in next update

Changes:
-fixed minigun physics issue
-fixed M1 Garand ammo clip issue
-fixed dustbin clearing your hand issue
-fixed scar charging handle pullback length
-fixed bipod support rack colliding with your own body
-fixed suppressor not screwed in on spawn for gun vault guns
-reduced used shell casing lifespan to improve fps
-fixed RPG round issue where it keeps droping on item spawn
-fixed m60 incorrect size
-fixed sawed off shotgun incorrect size
-reduced chance where mag insertion would jerk gun too much
-fixed ammo count of m95 in main menu map
-fixd rpd shell ejection's positioning