Merge pull request #34 from Rutherther/tests

Add core tests

feat(tests): use merged HandlePacketAsync method

fix(tests): expect FakeError instead of GenericError

feat(tests): add tests for command processor, walk command handler, stateful injector

chore: update dependencies

chore: update to .NET 7

feat!(core): make some classes internal

Merge pull request #12 from Rutherther/packets

Implement custom packet serializer

chore: remove NosCore dependency

chore: fix line endings

Merge branch 'in-packet-serialize' into 'main'

Serialize IN packet

See merge request Rutherther/nos-smooth!3

tests: add tests for in packet serializer