Render Capture implementation on Amlogic for Ambilight addons

[Hedda]

Please implement CRenderCapture support for Amcodec/Amplayer on Amlogic to enable Ambilight addons like Boblight as requested here

http://forum.kodi.tv/showthread.php?tid=219563

Looks like Davilla/Pivos have already done some work on this as linked here below which could maybe be backported?

https://github.com/davilla/boblight-1

https://github.com/Pivosgroup/boblight

https://github.com/Pivosgroup/TOFU-XS-Android-TOFUApp