feat: add infinite gp and skip premusic

Also, run the autoformatter.
Also, the skip is now cleaner.

InfiniteGP/MU3.User/patch_UserManager.cs

@@ -0,0 +1,33 @@
+#pragma warning disable CS0626
+#pragma warning disable CS0649
+#pragma warning disable IDE0051
+#pragma warning disable IDE1006
+#pragma warning disable CS0108
+
+namespace MU3.User;
+
+public class patch_UserManager: UserManager {
+    public const int DefaultGP = 666;
+    private int _gp;
+    private OnUpdate _onUpdateGP;
+    private OnReset _onResetGP;
+
+    public void resetGP() {
+        _gp = 666;
+        if(_onResetGP != null) {
+            _onResetGP(_gp);
+        }
+    }
+
+    public int GP {
+        get {
+            return _gp;
+        }
+        private set {
+            _gp = 666;
+            if(_onUpdateGP != null) {
+                _onUpdateGP(_gp);
+            }
+        }
+    }
+}