feat(combat): add enemy, item, skill selectors

feat(combat): add errors

feat: add combat

fix(nosfiles): correct MpCost position in nosfiles

fix(packets): correctly use cast id instead of vnum in UseSkill packet

fix(packets): make correct fields in drop packet

chore(pathfinding): update dependencies

feat(pathfinding): add user cancelling to walk manager

fix(pathfinding): update pathfinding to work with same position, small distances...

fix(packets): make st packet buff vnums a read only list instead of list

chore: update dependencies

feat(game): respond to skill use packet sent from the client to set cooldown early

fix(game): set health to 0 on entity death

fix(game): do not replace character with player in map entities

chore: update to .NET 7

feat(packets): merge send and receive packet handling to one method

chore(core): update version

feat(samples): update file client

feat(core): make command handler not found error

feat!(core): make some classes internal