Added first script to find unused files in STK.

tools/find_unused.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+echo "Searching for unused stkgui files"
+echo "---------------------------------"
+cd data/gui
+l=""
+for i in $(find . -iname "*.stkgui"); do 
+    s=$(basename $i)
+    x=$(find ../../src/states_screens -exec grep -H $s \{} \; | wc -l)
+    echo -n "."
+    if [ $x == "0" ]; then
+        l="$l $i"
+    fi
+done
+echo
+
+for i in $l; do
+    echo "$i appears to be not used."
+done
+
+echo "done"
+
+
+