IOS remote control e.g. FireTV via HDMI-CEC
firstly thanks to this great plugin ! .... and @tavicu happy honeymoon there ~~ :-)

![image](https://user-images.githubusercontent.com/36304198/63208876-4b492880-c0da-11e9-867b-a22419980ca9.png)

currently the IOS remote can navigate if input is e.g. Youtube, but not for HDMI input.

For instance, I have FireTV plugged in AVR then output via HDMI to Samsung TV(due to better audio decoding). We know Samsung remote can physically navigate within FireTV's interface by means of the [HDMI-CEC](https://en.wikipedia.org/wiki/Consumer_Electronics_Control) protocol,  e.g. power-off TV also does power-off AVR(via HDMI), but HDMI-CEC has more, e.g. with arrows navigate, confirm and back etc. I don't know if it is possible or already in development, so I miss the setting in config.json, I read [this](https://github.com/tavicu/homebridge-samsung-tizen/issues/88) cannot find.

On the other side, beside the navigate screen shown above, how to bring up [this](https://cdn.macrumors.com/article-new/2019/02/tvremotenewinterface-800x780.jpg) screen
https://cdn.macrumors.com/article-new/2019/02/tvremotenewinterface-800x780.jpg

as TV is the center of entertainment devices , so this expansion would be very useful, right? 

thanks!