Wanhao i3 V1 BLTouch compact mount

After using this remix https://www.thingiverse.com/thing:3438512 for a while, I've decided to model my own, more compact and lightweight version, while also placing probe closer to nozzle.

My config is following:

`M851 X-19 Y-34`
`#define NOZZLE_TO_PROBE_OFFSET { -19, -34, 0}`

Your Z offset may vary. Please start with zero and properly calibrate it with a piece of paper or other means.