Create script to make the cow files

The script uses 'img2xterm' to generate cow files from each pokemon
image.

make_cows.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+#
+# Transform image files pixel per pixel into cow files.
+#
+
+for fullfilename in ./scrapped-data/*.png
+do
+    filename=$(basename "$fullfilename")
+    extension="${filename##*.}"
+    filename="${filename%.*}"
+    img2xterm --cow "$fullfilename" "cows/$filename.cow"
+done