Inductive 3D printer XY calibration GUI

This program can be used to calibration the x and y offset of a
multi-material 3D printer using LDC1101EVM evaluation module, to which a
coil is mounted with the axis perpendicular to the PCB.

The evaluation module should be placed on the bed and the printer and
the module should be connected using usb cables to your computer. Then
when running this program it will move each nozzle over the coil and
determine the offset between the nozzles. This works because the nozzle will cause a decrease in the inductance of the coil as is described in "XY calibration of tool offsets in a multi-material fused deposition 3D printer"