Natural FPS

The goal was to implement FPS using one model, and not two as usual (body model and hand model).

The package provides simple AIM, FPS, body tilts that work in late update.
The package includes:
- Aim (with weight distribution for each bone)
- IK
- Body tilts (no animation)

Also additionally:
- a script of a weapon with settings (rate of fire, the ability to make shots exclusively single, bullet strength, weapon recoil, range of fire, weapon weight, setting the position for each weapon relative to the haracter's body) and the ability to aim;
- a script for changing weapons, which, using IR, ensures precise contact with the weapon at the time of change (see the animation curve for setting IR).
also the ability to pick up weapons from the floor (distribution of weapons by slots depending on the type of weapon)
- physics-based bullet script (with decals and trajectory rendering)
- camera controller (with the ability to enable and disable the impact of recoil on the camera)

Code is commented
Documentation