Created and implemented following classes:
CreateMissionMessage
MassacreObjective
Mission
MissionManager
AssassinationObjective

The game now has a way to take in new objectives and manage them based on player actions
Merge branch 'master' of https://github.com/dadamitskiy/WarInParadise

Conflicts:
	WarInParadise/WarInParadise.vcxproj
	WarInParadise/WarInParadise.vcxproj.filters
	WarInParadise/source/Game States/GameplayState.cpp
	WarInParadise/source/Objective/MassacreObjective.cpp