load_order.txt

[phobos2077]

Placed in mods/load_order.txt (maybe a better name). How it should work:

• Load the ExtraPatches INI section as before (I'd mark it as deprecated)
• If file doesn't exist:
  • Get a list of mod .dat files and folders in mods folder just like before.
  • Create the file and write that list into the file.
• Read load_order.txt line by line
  • Skip empty lines or lines containing names of files/folders that don't exist
  • Add file to ExtraPatches array (patchFiles)

Based on idea from #450