Fixed body armor dropped on death not being able to be picked up

Fix some TacRP integration issues

Bump mines will no longer do damage to entities that aren't prop_physics or func_breakable. This mainly prevents it from destroying LVS vehicles.

Fix HL2 category breaking with sub-category headers

Spawnmenu Category icons (only in dev/x86-64 branch)
Use non-hacky armor function (currently only in dev/x86-64. functionally the same)
Picking up helmets while already wearing one will now consume the helmet for some armor (configurable, default 10)
Restored SWCS integration
TTT integration for Bump Mines and Health Shot (Not thoroughly tested!)
Armor hit sound settings
Bump Mines attached to living things will consistently launch them in the mine's thrown direction
Hopefully slight improvement to performance
Bump mine wall crashing timer is longer and can crash into multiple walls

Shoutouts to homonovus (SWCS dev)!

Custom Drop menu will use subcategories on applicable weapon bases
Clamp health bar display

Weapon cases can now have Custom Drops configured.
Added Shrink Cases convar.
Fix max ammo message appearing when picking up certain ammo types.
Fix parachute deceleration not working with low target velocity.
Fix deploy speed issue on equipment.

Armor headshot sound effect

Fixed error when using up equipment with no other weapons on the player.

Should fix issue where armor is instantly stripped on taking damage.