0.1.0 staging > development

[mtschoen-unity]

Includes Poly workspace and bugfixes done to support Poly workspace

• GC improvements
• Fix stuck "menu hidden" state in some cases
• Fix auto-hidden main menu invalidating UI hovers
• Basic grouping support beyond prefabs

[mtschoen-unity]

Not sure why I can't change the base back to development. Manual merge successful and pushed back to development.