Tweaked volume to Madsen MG

Tweaks to all models to fix issue with sights
Updated MG08 reload animation
Fixed crafting formula conflicting MG08/18 with Chauchat M1918

Lewis Pan Mag (Large) Added (31429)
Renamed "Lewis Pan Magazine" to "Lewis Pan Mag (Small)"
Tweaks to model size for Lewis MG and MP 18 (was too large)
Reduced structure and vehicle damage for all guns (was too high)

MG 08/18 Added (31426)
Chauchat M1918 Added (31427)
Tweaked MG 08/15 model
Fixed Chauchat M1915 LOD model

Madsen Added (31424)
Adjusted MG 08 Sights to aim down from sights further
Repositioned grip attachment position for Lewis MG
Moved MP 18 more forward when equipped
Renamed Chauchat to Chauchat M1915
Corrected spelling mistake of MP 18/I

Next content to add will be Chauchat M1918 and MG 08/18

MP 18/I Added (31422)
Reduced structure and vehicle damage (still higher than in-game base damage)
Slightly increased Lewis MG RoF
Tweaks to player damage per bullet

I will adjust the position of the grip for the Lewis MG and the name error for MP 18 in the next patch

Chauchat Added (31420)
Adjusted rarity of items
Slightly reduced rate of fire for all guns

MG 08/15 Added (31415)
Lewis MG Added (31418)