Changed GameState to EngineState, removed Menu state.
Added UpdateFlags struct.
Added bool checking to engine loop.
Implemented pauseAll and resumeAll in UpdateFlags.
Allowed tryGet to use access arrays.
Merge branch 'develop' into feature/EngineState
Merge pull request #123 from Circular-Studios/feature/EngineState

Feature: Engine State
Trying to fix animation bugs.