fix(game): do not add game responder multiple times

fix(game): add skills api to the service provider

feat(game): respond to rest, raidfhp, tp, throw, mapclear, die, char_sc packets

Resolves #58

Merge pull request #53 from Rutherther/feat/raids

Add raid processing

feat(game): add raid handling

feat(game): add dialog handling, dialog opened event

Merge pull request #55 from Rutherther/feat/contracts

Add contract system

feat(game): split nostale apis into safe, unsafe, add contracts usage

feat(core): add basics of a contract system

Merge pull request #51 from Rutherther/feat/easy-api

Add easy apis for various things

feat(game): register apis to service collection

Merge pull request #46 from Rutherther/feat/act4

Add Act4 status processing

feat(game): emit Act4StatusReceived event upon receiving act4 info

Resolves #43

Merge pull request #45 from Rutherther/feat/mates

Add support for mates

feat(game): add mates processing

feat(game): add friends processing

feat(game): add group processing

feat(game): add (basic) inventory parsing

feat(game): make event dispatcher scoped

Merge pull request #8 from Rutherther/game-objects

Game objects