De-LMR'd the VC2012 projects and solution.
Merge remote-tracking branch 'fluffyfreak/de_lmr_vc2012'
Print more log messages in modelviewer, fill UV coordinates with 0 if they don't exist

Closes #1952, closes #1876
Scaling & landing gear positioning helper model
Toggle scale/landingpad test with p.

Closes #1981.

Gun/pad resources are cleared with the model because texture cache clearing would remove their textures as well.