Core architectural changes

[FacoBackup]

Remove material file

• Migrate material settings to mesh component itself
• Rename mesh component to primitive component.

Atmosphere component:

• Instead of storing "atmosphereEnabled" and sun settings, have a component that holds both
• Migrate volume settings to atmosphere component
• Allow defining which atmosphere will be the main one or use the first one otherwise

Inspection & world

• Remove world grid (No longer used)
• Open-closed principle world repository
• Rename worldRepository to WorldSystem
• Allow adding and removing components
  • Dependency list for components
  • Remove all other components that depend on the removed one

Settings panel:

• Render only repositories all as accordions for each element
• Remove childPanel from form