Ender 6 Biqu H2 Mount

Alterations

Lots of minor tweaks and adjustments of overall proportions and sizes.
* Remade Main plate from scratch
* Reduced amount of material needed
* Changed top holes to allow for additional mounting if desired
* Increased space for X axis endstop.
* Biqu H2 Mount
* Moved mount holes away from base slightly to reduce mount strain and align better with the extruder
* Redesigned bottom mount to increase space around hot end
* Reduced mount from 2 holes to 1 hole to allow some room for cabling.
* Increased depth of the cable channel behind the extruder.

This has not yet been tested or printed.

Work in progress. Feedback appreciated.