HIC Prusa i3 Custom Firmware/ bed level/ metal to metal zmin

Updated firmware for the HIC prusa. It has the auto bed leveling feature, but not the servo arm feature. the reason for this is that i used the method of splicing the z endstop wires to the aluminum bed, and the other to the x carriage ( as long as it makes contact with metal hotend). when these two make contact, the zmin is triggered. this method seems to work flawlesly with my machine, however, if you find an error, please let me know so that i can update mine too.

If you just want the f