Pre-emptive fixes for upcoming type update to FrooxEngine

[BlueCyro]

These fixes allow RML to continue working on the new pre-release (and hopefully the actual release) builds of Resonite that do some heavy reworking of the type system.

Changes:

• Removed some assembly hiding code referencing the workermanager as it no longer exists
  • It also probably isn't required due to the built-in type sanitization now
• Removed the whole compatibility hash spoofing since it's no longer required
• Removed the modloader from the registered assemblies by name so hosted sessions are compatible with vanilla users
• Added the proper assembly attribute to the modloader assembly so that FrooxEngine loads it