Reinforced wooden doors.
gotta swap branches to bugfix!
Reinforced boarded windows!
Metal doors!
Metal armored windows!
Recipe tweak.
Tweak.
Added ability to rescale used tileset at runtime using action.
Re-order game.h member variables so no warning will be generated.
Move new field_ids to bottom.

Should hopefully fix the weird tile problems we have been having lately.
move file_exist to file_wrapper.h/cpp
Computers that open doors and change glass into floors now do so in a 25 square radius, and not the whole map.
Merge partial field definition fix.
Reorder the rest of the field definitions.
Merge limit to extent of door opening function.
Merge reinforced buildable terrain.
Rearrange new terrain enums to not mess up existing saves.
Fixes description for bio_face_mask.

The unit itself got the right description, but the packaged model
didn't.
Also blade.
Fixed placeholder description.