Better LED colours and gamma by rogere66 - testing and bugfixing thread - FEEDBACK NEEDED

[openshwprojects]

Ok, so this is a thread for this pull request: https://github.com/openshwprojects/OpenBK7231T_App/pull/447 It was merged and I added my changes (config save, float pwm access). The channel values on main page are also shown as floats. Here is @rogere66 readme: https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/led_gamma_control.md

Please flash to one device and check carefully!

Please double check if everything is ok and report.

I checked on my N bulb and it seems GREAT!

I can't believe how wrong I was, this is a real game changer, I should have merged it sooner, but I was put off by float channels (but I solved it, they are still integers for all case except PWM and it works now). @rogere66 really improved LEDs a lot.