Anet A6 BLTouch/3DTouch mount (front) improved

Since the parts printed from the original design broke on me on a regular basis (the BLTouch arm always started to warp up after a few days and finally broke) I tried to give the arm a little more stability. Also, there's an extra hole in the fan mount plate to fit https://www.thingiverse.com/thing:2807706 (which is a quick remix of https://www.thingiverse.com/thing:2503019) without additional drilling.

*Update V1.1 (2018-03-05):* There's a new mount hole at the rear top to even more simplify