Allow to enable/disable memory checks even on release mode through the flag, return error for invalid addresses on SvcMap*Memory svcs, do not return error on SvcQueryMemory (instead, return reserved for the end of the address space), other minor tweaks

ChocolArm64/AOptimizations.cs

@@ -1,4 +1,4 @@
 public static class AOptimizations
 {
-    public static bool EnableMemoryChecks = false;
+    public static bool DisableMemoryChecks = false;
 }