Incorporate NAPS Library

[aussig]

Freddy de Pues has very generously contributed the whole of NAPS library to OpenSceneryX. This is huge so will take time to incorporate.

• NAPS_AIRCRAFT
• NAPS_BUILDINGS
• NAPS_FIRE_RESCUE
• NAPS_GREEN
• NAPS_HANGARS
• NAPS_LAGNIAPPE
• NAPS_LANDMARKS
• NAPS_LIGHTS
• NAPS_LINS
• NAPS_NAV
• NAPS_NAVAL
• NAPS_POLYGONS
• NAPS_RECEPTIONS
• NAPS_ROADS
• NAPS_SIGNS
• NAPS_TERMINALS
• NAPS_TOWERS
• NAPS_TRANSPORTATION
• NAPS_WALLS_BARRIERS_FENCES
• NAPS_WEAPONS

ALSO NOTE:

• The conversion to Blender process wipes out many lights such as LIGHT_SPILL_CUSTOM, so as a final phase, need to search across all new NAPS files for missing lights and review whether we need to incorporate any.
• Also worth checking all LIT textures as a final phase as some have grey areas instead of black.

Note that a lot of work is ongoing in the XPlane2Blender project to implement WYSIWYG lights, so full export will be implemented soon, however this won't affect the import from AC3D.