fix(packets): make inv sub packets optional

fix(packets): make gidx family sub packet nullable, family icons optional

chore: update nuget push to work only on release published

docs: add optional wrapper present parameter documentation

chore: remove nuget NosSmooth.Data.Abstractions dependency

chore: update versions

Merge branch 'main' of github.com:Rutherther/NosSmooth

feat(packets): make in non player unknown4, unknown5 optional

Merge pull request #52 from Rutherther/feat/optional-wrapper

Add optional wrapper

docs: add not in range, nullable wrapper docs

fix(packets): add missing constructor to PreqPacket

feat(packets): fix clist packet pets sub packet type

feat(packets): add optional wrapper for wrapping optional values inside of a list

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

Add easy apis for various things

feat(game): register apis to service collection

feat(packets): represent pet skill packet correctly, last parameters are map x, map y

feat(game): add mate skills api

feat(game): update skills api to allow using skills on self (character)

feat(game): add inventory api

feat(game): add inventory api