2.6.0 - Mass initialize button, Fast64 conversion

• Initializing a material that was a Fast64 material before will transfer as much data as possible to Objex2 and remove all Fast64 related data
• Added a Mass Initialize button in viewport sidemenu, this inits all materials as Objex2 materials (the feature mentioned above also applies)
• Fixed an issue where everything was rendered black&white if it was used above Blender 3.0 version
  Note: it still crashes if used above 3.4, so stay at 3.3 LTS or 3.4 for now