Add relay lib, and SRV03 footprint

footprint/relay.pretty/SRD-03VDC-SL-C.kicad_mod

@@ -0,0 +1,17 @@
+(module SRD-03VDC-SL-C (layer F.Cu) (tedit 59AEA4D7)
+  (fp_text reference REF** (at 8 8.5) (layer F.SilkS)
+    (effects (font (size 0.9 0.7) (thickness 0.17)))
+  )
+  (fp_text value SRD-03VDC-SL-C (at -10.5 0 90) (layer F.Fab)
+    (effects (font (size 0.9 0.7) (thickness 0.17)))
+  )
+  (fp_line (start -9.55 -7.75) (end -9.55 7.75) (layer F.SilkS) (width 0.17))
+  (fp_line (start 9.55 -7.75) (end 9.55 7.75) (layer F.SilkS) (width 0.17))
+  (fp_line (start -9.55 7.75) (end 9.55 7.75) (layer F.SilkS) (width 0.17))
+  (fp_line (start -9.55 -7.75) (end 9.55 -7.75) (layer F.SilkS) (width 0.17))
+  (pad 3 thru_hole oval (at -7.5 0) (size 0.7 1.5) (drill oval 0.4 1.2) (layers *.Cu *.Mask))
+  (pad 2 thru_hole circle (at -6.1 6) (size 1 1) (drill 0.7) (layers *.Cu *.Mask))
+  (pad 1 thru_hole circle (at -6.1 -6) (size 1 1) (drill 0.7) (layers *.Cu *.Mask))
+  (pad 4 thru_hole circle (at 6.1 -6) (size 1 1) (drill 0.7) (layers *.Cu *.Mask))
+  (pad 5 thru_hole circle (at 6.1 6) (size 1 1) (drill 0.7) (layers *.Cu *.Mask))
+)