Prusa i3 MK2 Clone Ramps 1.4 Cover Base + Door

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Modified Prusa i3 MK2 Cover Base and Door to fit RAMPS 1.4/Arduino.

I have included the modified scad files, as required by the GPL license.
Note that these files may require additional files, which can be found in the Prusa GIT repository.

Also note that the fan grille was taken from another scad file, of which I am unable to identify the original designer. I will remedy this if