[Contribute] External json file with log levels

[Insality]

Add a path to game.project to JSON file with content

{
    "logger_name": "FATAL",
    "game.project": "TRACE",
    "gui.*": "WARN", // Probably we can use * to mask several characters?
}

On start if this file loaded, this log levels should be used as LEVEL for this logger.
DEBUG_FORCE_LEVEL should have more priority.
File should be loaded before first logger created