fixes attach_camera like a boss

added source files to vpk and some improvements

better idle animation that does not jitter around in a weird way and more closely resembles the other shotguns

- reverted the flashlight attachment changes on both the viewmodel and the worldmodel because they looked bad

worldmodel

- smoother deploy animation (original one was jittery AF)
- improved flashlight attachment.

- I finally fixed the shove animation!

- FIXED THE BONE POSITIONS IN THE WALKING ANIMATION, NOW THEY ARE IN THE EXACT SAME POSITIONS AS VANILLA

- FIXED RELOAD_END_LAYER, IT IS NOW PERFECT, NO SUBTLE SNAP ISSUES ANYMORE

- THE ADDON IS NOW PERFECT. FINALLY.

- fixed the player's camera slightly moving/jittering while holding the autoshotgun

- adjusted some anims so they look slightly smoother