- re added the csg position attribute and its handling in the three.js conversion and display
 * corrected double offset by translating the geometry vertices in the oposite direction, while keeping the correct position

-fixed csg object clone issue (that stemmed from an error in the translate code, was only visible in some cases)

-added experimental UID to csgBase objects , for possible unique tracking

-fixed issue that would prevent background processing compiling when using comment blocks
- fixed selected object crosshair display issues