Gun no longer an Item, bullets gone
fixes #71 . Modificaciones en la arquitectura, creación de clase abstracta Item.
Merge branch 'Weapons' of https://github.com/semvidEAFIT/infiltration-game into Weapons

Conflicts:
	Unity_Project/Assets/scripts/src/characters/soldiers/Soldier.cs
Added particle emmiter to know when the soldier fires
commit before pull from Wepons
Fixes for #47
pull from semvid weapons branch
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Fix the fuck off exclamation
Fix the fuck off