Start on the big motor controller boards

Change-Id: Ia9fc9158a861be664bf77cf3309860af75b18ff8
diff --git a/motors/big_schematic/gafrc b/motors/big_schematic/gafrc
new file mode 100644
index 0000000..c1bfff0
--- /dev/null
+++ b/motors/big_schematic/gafrc
@@ -0,0 +1,2 @@
+(component-library "../symbols" "Custom Symbols")
+(source-library "..")