Use material plugins instead of ShaderMaterial for space station parts

[BarthPaleologue]

Take inspiration from what have been done in ClimberRingPluginMaterial to replace the following shader materials:

• LandingBayMaterial
• MetalSectionMaterial
• RingHabitatMaterial
• CylinderHabitatMaterial
• HelixHabitatMaterial
• SolarPanelMaterial

They are all identical Metal/Roughness PBR materials with only UV computation changing.

This will make these materials compatible with babylonjs lights and deferred lighting in the future.

This is important because at the moment space stations are very dark and not very visible from outside.