Added a tools script to generate dummy games files.

tools/create_dummy_game_files.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/bash
+#  SPDX-License-Identifier: MIT
+#
+#  EmulationStation Desktop Edition
+#  create_dummy_game_files.sh
+#
+# This script generates dummy files for each system in the ROM directory and is intended
+# primarily for theme testing purposes. You need to run it from a ROM directory previously
+# generated by ES-DE as the systems.txt and systeminfo.txt files are used to create the dummy
+# files.
+#
+# This script is only intended to be used on Linux systems.
+#
+
+if [ ! -f ./systems.txt ]; then
+  echo "Can't find the systems.txt file, you need to run this script from your ROM directory."
+  exit
+fi
+
+for folder in $(cat systems.txt | cut -f1 -d":"); do
+  echo Creating dummy file for system ${folder}
+  touch ${folder}/dummy$(grep "^\." ${folder}/systeminfo.txt | cut -f1 -d " ")
+done