Update info/logfiles API call to collect print3d logs instead of ultifi logs. Change printer/getProgress to return current, buffered and total gcode lines. Remove unused constants from printer api.
Merge branch 'feature/printerdriver' of github.com:Doodle3D/doodle3d-firmware into feature/printerdriver

Conflicts:
	src/rest/api/api_info.lua
Fix cleanup in info/logfiles api.