chore: update to .NET 7

chore(packets): update version

fix(packets): make cancel unknown nullable

fix(packets): make cinfo icon short

fix(packets): make eq packet size optional

chore: update versions

feat(packets): add cancel packet

feat(packets): make position in su packet short

chore: update versions

fix(packets): seek when nullable converter finds null.

fix(packets): make correct types in gp packet

fix(packets): make correct inner separator in eq sub packet

fix(packets): make repuration icon signed

Revert "feat(packets): make position ushort"

This reverts commit 8610668d17586fc8d502d8c86842af9504729c7a.

feat(packets): make position ushort

Merge pull request #8 from Rutherther/game-objects

Game objects

chore(packets): update version

feat(packets): add sp point and cooldown packets

feat(packets): add miniland info and objects packets

feat(samples): add sample with loading data from a file