AdminConfigurationManagerRegisterProxy Method
Registers a hidden vault extension method with the vault application.
This will instruct the vault application to route a VaultExtensionMethod
called like below to this instance's
RouteRequest(EventHandlerEnvironment)
method.
VaultExtensionMethodOperations.ExecuteVaultExtensionMethod(
"<VaultAppExtMethod>, "[ \"<this.ProxyMethod>\", "<command>", ... ]" )