Mantis Dual 5015 Toolhead by Long

Please see the (Readme_v1.06.pdf) for full description, bom, etc

Changes

7-18-2021

1. Now compatible with Voron 1.8!
2. updated readme
3. changed directory structure for clarity
4. magprobe dock arms v1.5 - new version of dock arms (for bed and gantry mount) which are tighter and longer (thanks to ShinyPants for lots of testing with these)
5. carriage_v1.037 - minor revision adds a hole on the left side for ADXL mounting (thanks koonweee)
6. chain_anchor_v3.2 - moved the front ziptie location higher. added a rear ziptie location. (thanks koonweee)
7. mantis_v1.037a.step updated - includes the above changes