Wall Mounted Drybox with Sensor + Bowden Mount

Going to all the trouble of printing a drybox with a humidity sensor seemed silly to then let the filament sit exposed directly from box down to the MMU or extruder. This remix replaces the screw holes and slot for plastic foil slit with a built in (and angled) mounting point for Bowden tube PC4-M6 fittings - thread M6/3mm. Also included is my v1 retrofit piece for existing wall mounted dryboxes which can be placed over the slot on original boxes. I didn't spend a ton of time on the retro fit so you may notice it's the same as the internal retainer, but works best mounted outside. No supports needed for full bottom half. May consider some supports for retro fit up to the flat bottom of the mount point.