Updated entities models with phong and cubemaps

Remade the electricity ammo model to resemble the original game

Added PlayerCanPickupItem hook check

None Provided

Minor fixes for the drawing

Fixed health pickups not working after loading a save

Fixed solidity

Tweaked trigger bounds and model scale

- Added spawnicons
- Changed shells give ammo value to 10

- Modified ammo model scale
- Moved item sounds here from sweps addon

- Changed respawn time values to be more faithful
- Recompiled all models - changed path and names, fixed normals, changed scales
- Moved here weapon pickup entities from the main addon