fix: make family id nullable in family

refactor: split string converters

feat: do not use linq in FindPacketInfo

chore: add documentation for packets say, in player, cinfo

Merge pull request #12 from Rutherther/packets

Implement custom packet serializer

feat: add client SayPacket

fix: use correct separators for skill sub packet

fix: make lists at end of packet optional

chore: fix documentation

fix: mark in player sub packet family name as nullable

fix: move FamilyName to InPlayerSubPacket

fix: remove InnerSeparator from in subpackets

feat: enable inline converters in all packets

feat: add packets (ncif, u_as, pusle, msg, say, st, stat, c_mode, lev, ski, sr)

chore: renum Morph to MorphVNum

fix: fix attribute indexes in walk packet

feat: add cmap packet

feat: add walk packet

chore: add pinit sub packet unknown properties description

chore: remove NosCore dependency