Implemented live game loop.
Created base class for any battleship player that supports frame rendering (for live game loop).
Modified RandomOpponent to inherit BattleshipPlayer for frame rendering.
Added pegs (just cylinders) on main board to give better indication of hits/misses.
Colored in where ships will be as green squares (better to see and debug with). Ship models will be added soon.
Changed camera angle to a more top-down view, better to see pegs with.
Live game loop was implemented in LocalBattle, and as such BattleshipCompetition is not used. LocalBattle is an instance of MonoBehaviour (for frame rendering).
Added cases in Size's == operator to handle null comparisons. Also changed its != operator to simply call the == operator and NOT the return value.
Added model files (*.blender) to the project. They will be imported automagically, but are not actually used yet.