feat: implement adding generated serializers

fix: return correct result from object BaseTypeConverter.Deserialize

fix: make InnerSeparator, AfterSeparator non nullable

feat: add move packet with tests

chore: rename parameter serializer error

fix: allow to convert all enums using System.Convert class

feat: add service collection extensions for adding packet serializer

feat: add errors for converting packets

feat: add char and string type converters

feat: implement packet serializer

feat: allow nullables in converters

feat: add interfaces for serializers, converters

feat: add base packet types converting

feat: add Packets and PacketTests projects