RocketRP 1.2.3

Breaking updates:

• [Breaking] Changed a lot of internals, objects and generated json might not be compatible with previous versions.

Other updates:

• Upgraded .NET version
• ObjectTarget now references its target Type
• Updated a lot of core (de)serialization logic
• Generated replays will match more closely now
• Updated to support RL v2.53
• Some bugfixes

Please create an issue if you run into any problems :)