Seperated the support for tcp and http transports when using file serving so that they can be used at the same time.

#codereview Peter.Sauerbrei
#codereview Ankit.Khare

[CL 2170710 by Daniel Lamb in Main branch]

Engine/Source/Runtime/NetworkFileSystem/Public/Interfaces/INetworkFileServer.h

@@ -26,6 +26,15 @@ public:
 	  */
 	virtual bool GetAddressList( TArray<TSharedPtr<FInternetAddr> >& OutAddresses ) const = 0;
 
+	/**
+	  * Gets the list of local network addresses that the file server listens on.
+	  *
+	  * @param OutAddresses - Will hold the address list.
+	  *
+	  * @return true on success, false otherwise.
+	  */
+	virtual FString GetSupportedProtocol() const = 0;
+
 	/**
 	 * Gets the number of active connections.
 	 *