feat: add the remaining things

* DisableMaintenance
* UnlockAllMusic
* UnlockGameEvents
* UnlockMemoryChapters

DisableMaintenance/DisableMaintenance.csproj

@@ -0,0 +1,7 @@
+<Project>
+  <PropertyGroup>
+    <AssemblyName>Assembly-CSharp.DisableMaintenance.mm</AssemblyName>
+    <Description>Disable maintenance</Description>
+  </PropertyGroup>
+  <Import Project="..\Mu3Mods.csproj" />
+</Project>

DisableMaintenance/MU3.Operation/patch_ClosingManager.cs

@@ -0,0 +1,27 @@
+namespace MU3.Operation;
+
+class patch_ClosingManager: ClosingManager {
+    public new int getRemainingMinutes() {
+        return int.MaxValue;
+    }
+
+    public new int getClosedRemainingMinutes() {
+        return int.MaxValue;
+    }
+
+    public new bool isShowRemainingMinutes() {
+        return false;
+    }
+
+    public new bool isReceptionClosed() {
+        return false;
+    }
+
+    public new bool isForceLogout() {
+        return false;
+    }
+
+    public new CreditUseRestriction getCreditUseRestriction() {
+        return CreditUseRestriction.None;
+    }
+}

DisableMaintenance/MU3.Operation/patch_MaintenanceTimer.cs

@@ -0,0 +1,47 @@
+namespace MU3.Operation;
+
+class patch_MaintenanceTimer: MaintenanceTimer {
+    public new bool isUnderServerMaintenance() {
+        return false;
+    }
+
+    public new int getServerMaintenanceSec() {
+        return int.MaxValue;
+    }
+
+    public new int getAutoRebootSec() {
+        return int.MaxValue;
+    }
+
+    public new bool isAutoRebootNeeded() {
+        return false;
+    }
+
+    public new int getRemainingMinutes() {
+        return int.MaxValue;
+    }
+
+    public new int getClosedRemainingMinutes() {
+        return int.MaxValue;
+    }
+
+    public new bool isShowRemainingMinutes() {
+        return false;
+    }
+
+    public new bool isClosed() {
+        return false;
+    }
+
+    public new bool isForceLogout() {
+        return false;
+    }
+
+    public new ClosingManager.CreditUseRestriction getCreditUseRestriction() {
+        return ClosingManager.CreditUseRestriction.None;
+    }
+
+    public new bool isCoinAcceptable() {
+        return true;
+    }
+}