Explicit roofs on workshop version 2 expansion

[PatrikLundell]

Summary

None

Purpose of change

Provide explicit roofs on workshop expansion 2 rather than rely on roof adding magic.

Describe the solution

Update the palettes, use Z coordinates, define roofs and chimneys, and apply those.

Describe alternatives you've considered

Testing

• Load a suitable save and survey a workshop 2 expansion.
• Build the 6 sections out of different materials.
• Build the furniture that should have chimneys.
• Check that it looks as expected.
• Reload the save and build two sections out of the last two materials.
• Check the results.
  
  
  
  

Additional context