fix: Adds server access with protected accounts (#915)

Adds a configuration file to specify protected accounts:
_Distribution/Configuration/server-access.json_
```json
{
  "newPasswordOnReset": false,
  "protectedAccounts": ["admin"]
}
```

Protected accounts are unbanned and reset to `AccessLevel.Owner` upon login.

The option `newPasswordOnReset` will create a new password for a protected account if it needs to be reset. The password is a random GUID and logged to the console.

_**Note:**_ If your player character was accidentally modified, simply make a new character to fix the old one.

Projects/UOContent/Misc/AccountPrompt.cs

@@ -27,6 +27,9 @@ namespace Server.Misc
                     a.AccessLevel = AccessLevel.Owner;
 
                     Console.WriteLine("Account created.");
+
+                    ServerAccess.AddProtectedAccount(a, true);
+                    Console.WriteLine("Added {0} to the protected accounts list.", a.Username);
                 }
                 else
                 {