For security reasons planing to restrict access for ReadFile,
ReadFileLines, WriteJSONFile, ReadJSONFile, ListDirectoryFiles,
FileExists to the following folders/files:
"gui, simulation, maps, campaigns, saves/campaigns,
config/matchsettings.json, config/matchsettings.mp.json"
adding "moddata" if some mods need to access and ship custom files that
don't fit into other locations mentioned above
Differential revision: D4617
Reviewed by: @phosit
Comments by: @Stan@vladislavbelovFixes: #5850
This was SVN commit r27202.