ovol SV-01 BIQU H2 mounting plate & dual 5015 fans & BLTouch

This thing allows mounting a BIQU-H2 extruder to a Sovol SV-01 original gantry plate with dual rear-mounted part cooling fans and an integrated BLTouch mount. I created this because I found when I installed the excellent Hero Yourself kit by FullmoonCat, my PLA curling issues were fixed as if by magic. The extra cooling of two well-targeted 5015 fans fixed my print. Switching to an H2 extruder, I wasn't able to find a dual-fan solution which fit the SV-01.

Full instructions here: https://github.com/pendor/SV01-BIQU-H2