feat: add 4 things

* DisableEncryption
* LoadBoost
* UnlockFrameRate
* UnlockMasterDifficulty

WIP, not fully reviewed/tested yet.

UnlockFrameRate/MU3.Sys/patch_Config.cs

@@ -0,0 +1,19 @@
+using UnityEngine;
+
+namespace MU3.Sys;
+
+class patch_Config: Config {
+    public extern void orig_initialize();
+
+    public new void initialize() {
+        orig_initialize();
+
+        using IniFile iniFile = new("mu3.ini");
+
+        if(iniFile.getIntValue("Video", "VSync", 0) != 0) {
+            QualitySettings.vSyncCount = 1;
+        } else {
+            Application.targetFrameRate = iniFile.getIntValue("Video", "Framerate", 60);
+        }
+    }
+}