add new Hardware ID (VID / PID) of already supported device - no listet yet

Hello, I want to inform you about a new hardware ID that is currently not yet listet in sourcecode, but does work out of the box once the VID / PID is added to the list in "librtlsdr.c". https://github.com/steve-m/librtlsdr/blob/master/src/librtlsdr.c#L316 Hardware ID: *15f4:0133* VID: 15f4 PID: 0133 Manufacturer: HanfTek We already tried it out successfully under Linux by adding a new line with these specifications to "librtlsdr.c" and compiled. We successfully ran rtl_test, rtl_tcp and rtl_fm. I want to run it with SDR# Windows and was told to get in contact with the developers of the driver, in order to get it working. Sincerely, Martin