Added a command line option (-c, --config) to load a configuration file through the command line parameters

src/Ryujinx/Program.cs

@@ -151,6 +151,11 @@ namespace Ryujinx.Ava
                 ConfigurationPath = appDataConfigurationPath;
             }
 
+            if (!string.IsNullOrEmpty(CommandLineState.OverrideConfigFile) && File.Exists(CommandLineState.OverrideConfigFile))
+            {
+                ConfigurationPath = CommandLineState.OverrideConfigFile;
+            }
+
             if (ConfigurationPath == null)
             {
                 // No configuration, we load the default values and save it to disk