Snapmaker Pi Camera Mount & Holder

Slightly modified original model to reduce overhangs to the bare minimum, the bracket part might still need supports to properly print the inside of the mounting ring, but a bit of file work can fix a wrong print afterwards as well Also added an extra long arm variant for bigger 3d printers and a redesigned mount base with fitting measures for Snampaker A models mounting holes and groves on both inner sides to allow for mounting on both right and left sides of the print bed