weapons updates

Introduced match system and manual team picking

After grenades run out, you automatically switch to your next best ready weapon - ready as in loaded

forgot to fix this last time: reduced grenades from 100 to 3

We have grenades now!

gun viewmodel angle adjustments

- instated an Insurgency-like aiming model

- put a new self-made weapon base in place, which will hopefully resolve the issues with sounds being cut off beyond a certain distance

- changed the weapon sounds to hopefully have directional sounds now

- Ping function
- iron sight fix