Support for another VIDEO/AUDIO output

[windship]

Tang Nano 20K board including 40 pins RGB connecter and stereo speaker connector but they doesn't work with NESTang. I can use HDMI outputs only. But I want to connect NESTang with my old CRT monitor using RGB(VGA D-SUB) and listen the sounds from my audio receiver. Please support them. NESTang is emulating classic NES games, so I think many users want to use OLD CRT/RGB for it.