Store configuration file in AppData root if not in working directory (#693)

* Store configuration file in AppData root if not in working directory

This fixes MacOS app bundles, as the emulator cannot write the config
file into the app bundle.

* Remove duplicate fs calls

* I'm an idiot sandwich

---------

Co-authored-by: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>

src/config.cpp

@@ -27,6 +27,7 @@ void EmulatorConfig::load() {
 		return;
 	}
 
+	printf("Loading existing configuration file %s\n", path.string().c_str());
 	toml::value data;
 
 	try {