implement strategy interface
clarify use of strategy interface
create RandomAIStrategy
use random strategy
set game inside constructor, as previous doesnt work
select a random element form the list of possible elements, then 'click' on it via the strategy interface
Merge branch 'feature-random-strategy' into feature-player-strategies
Merge branch 'feature-player-strategies'
display symbol when user clicks a square
Merge branch 'feature-display-marker-on-click'