add fontgrep script

scripts/fontgrep

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+function fontgrep {
+	fc-list \
+		| grep $@ \
+		| awk '{$1=""; print substr($0, 2, length($0)-1) }' \
+		| grep -oE '^\s*[^,]+' \
+		| sort \
+		| uniq
+}
+
+fontgrep $@