Remove LMRModel.

Game builds, will not run due to missing models.
Replace missing models with error model. Game runs.
Remove some LMR-isms
Remove LMRMaterial, and material handling from ShipFlavour. It needs to be rewritten.

Increment save version
Rename LmrObjParams to ModelParams

Reliance on this struct should be minimized
Some lmrmodel -> model renaming
Remove BufferObject, was LMR specific
Remove LMR exclusive state tracking from Graphics
Remove ModelBase
Remove transitional workarounds, models are always SG::Models
Fix and clean up includes
Replace ground stations with a 4-pad placeholder model, remove smaller ones entirely
Delete all LMR models
Remove GetTextureNum
ModelParams is now used only internally
silence init order warnings
newlines
Merge branch 'de-lmr'