Dragonburner MK8 hotend mount

MK8 Hotend mount for latest Dragonburner v8 with standard sherpa mini extruder pattern.

Assembly:

• add two “voron” 3ID*5OD*4H heat-inserts
• slide hotend from the bottom
• secure with m3*16mm screws into mount

Note: this is only mount, you still need parts like cowl, extruder mount and others from the original repository to assemble whole dragonburner toolhead

Rest of the parts from dragonburner toolhead repository:
 https://github.com/chirpy2605/voron/tree/main/V0/Dragon_Burner

Changelog:

• 12.07.2024 - added .step file and assembly gif
• 26.10.2024 - fixed incomplete bore on left screw, make heatinsert holes tapered, reinforced bottom part