Add basic mounting holes

fab.pretty/MountingHole_2.5mm.kicad_mod

+(module MountingHole_2.5mm (layer F.Cu) (tedit 60A7B376)
+  (fp_text reference REF** (at 0 3) (layer F.SilkS) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (fp_text value MountingHole_2.5mm (at 0 -3) (layer F.Fab) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (pad "" np_thru_hole circle (at 0 0) (size 2.7 2.7) (drill 2.5) (layers *.Cu *.Mask))
+)

fab.pretty/MountingHole_2mm.kicad_mod

+(module MountingHole_2mm (layer F.Cu) (tedit 60A7B338)
+  (fp_text reference REF** (at 0 2) (layer F.SilkS) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (fp_text value MountingHole_2mm (at 0 -2) (layer F.Fab) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (pad "" np_thru_hole circle (at 0 0) (size 2.2 2.2) (drill 2) (layers *.Cu *.Mask))
+)

fab.pretty/MountingHole_3mm.kicad_mod

+(module MountingHole_3mm (layer F.Cu) (tedit 60A7B35D)
+  (fp_text reference REF** (at 0 3) (layer F.SilkS) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (fp_text value MountingHole_3mm (at 0 -3) (layer F.Fab) hide
+    (effects (font (size 1 1) (thickness 0.15)))
+  )
+  (pad "" np_thru_hole circle (at 0 0) (size 3.2 3.2) (drill 3) (layers *.Cu *.Mask))
+)