Add steamapps troubleshooting and autocreation script

overlay/etc/cont-init.d/100-configure_steam_mnt_games.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+echo "**** Configure Steam /mnt/games steamapps folder ****"
+
+# Upon first execution of this container, /opt/scripts/install_steam.sh will create a library location named "Mounted
+# Games into the /mnt/games/GameLibrary/SteamLibrary location, but not create the required steamapps folder"
+# Check /mnt/games to see if it is configured as a Steam Library, and if it is, make sure the steamapps folder exists
+MNT_LIBRARY_PATH="/mnt/games/GameLibrary/SteamLibrary"
+
+if [ -f "$MNT_LIBRARY_PATH/libraryfolder.vdf" ] && [ ! -d "$MNT_LIBRARY_PATH/steamapps" ]; then
+  mkdir -pm 777 "$MNT_LIBRARY_PATH/steamapps"
+fi