remove build-and-run script for lmrmodelviewer
delete Ship::Animation and SpaceStation::Animation enums
add an allowPlaceholder parameter to Pi::FindModel (defaults to true)
fix the shipstat dumping code to work without LMR
update doc comment for ShipFlightState enum (no longer used by LMR)
update comments (strip all references to LMR)

It's like it never existed! Sort of.
Merge remote-tracking branch 'luomu/fix-2074'
Merge remote-tracking branch 'johnbartholomew/remove-lmr-loose-ends'
Changed alot of seeds to fix sol
Merge remote-tracking branch 'shadmar/reseed_sol_after_mtrand_removal'
Slightly simplified billboards
Navlights: blink in a preset pattern when landing gear is down
More flexible light pattern
Preset light patterns for ships and landing pads
Light scaling
Add lights to placeholder_ground