Add Marlin firmware. Has initial configuration for CoreXY and 1 servo.

Update CAD file with improved clearances for Pilot G2 cartridge clearances after first print.

Marlin Firmware/buildroot/bin/uncrust

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Run uncrustify for a file in-place
+#
+
+TMPDIR=`mktemp -d`
+
+# Reformat a single file to tmp/
+if uncrustify -l CPP -c ./buildroot/share/extras/uncrustify.cfg -f "$1" >$TMPDIR/uncrustify.out ; then
+  cp "$TMPDIR/uncrustify.out" "$1"  ; # Replace the original file
+else
+  echo "Something went wrong with uncrustify."
+fi
+
+# Clean up, deliberately
+[[ -f "$TMPDIR/uncrustify.out" ]] && rm "$TMPDIR/uncrustify.out"
+rmdir "$TMPDIR"