feat(game): keep only skills of type Player in player's skills

Merge pull request #60 from Rutherther/feat/combat-v1

Make combat nonblocking, make multiple queues for distinct operations

feat(game): remove primary and secondary skill from OtherSkills, add AllSkills

Merge pull request #45 from Rutherther/feat/mates

Add support for mates

feat(game): add mates processing

feat(game): add group processing