fix(packets): correctly parse family

fix(game): treat nullable fields in cmode packet correctly

feat(game): add group processing

feat(game): put friends, group, inventory, skills in Game instead of Character

chore: make updates to get rid of warnings

feat(packets): add many new packets

Merge pull request #8 from Rutherther/game-objects

Game objects

feat(game): add handling of packets for maps and entities

fix: use correct namespaces inside of game project

feat: extract game semaphores logic

fix: use new packets in game responders

fix: use nos smooth packets in game

feat: add responders for character actions