Migrate remaining frames

[mugling]

Migrates remaining vehicle frames and incidentally closes #16918 which was due to the lack of the INITIAL_PART flag for some of the frames. I've done the remaining migration together with the fix to avoid later reintroducing the problem.

You can start vehicle construction with the following frames:

id	name
folding_frame	foldable light frame
folding_wooden_frame	foldable wooden frame
frame_cross	frame
frame_wood_cross	wooden frame
frame_wood_light_cross	light wooden frame
hdrame_crosss	heavy duty frame
xlframe_cross	extra light frame

[Coolthulhu]

Could also debugmsg when a frame is consumed but has no INITIAL_PART