due to Arduino 3.0.1, a few updated libraries are required:
* Tasmota Platform - official platfomio lacks arduino support for C6
* FastLED (latest + C6 build patches)
* AsyncTCP (latest + C6 build patches)
* AsyncWebServer (latest + C6 build patches)
* NeoPixelBus (lastest)

ledc drivers have a different API in Arduino V3.0.1.
--> temporarily disable PWM support for C6, until we find the time to adopt to the new API.

currently NPB only support BitBang drivers for -C6.
This patch re-maps all RMT driver calls to BitBang.

The ESP32-C6 chip features 31 physical GPIO pins (GPIO0 ~ GPIO30). Each pin can be used as a general-purpose I/O, or to be connected to an internal peripheral signal.

restrictions:
-----------------

SPI0/1: GPIO24 ~ GPIO30 are usually used for SPI flash and not recommended for other uses.

USB-JTAG: GPIO12 and GPIO13 are used by USB-JTAG by default. If they are reconfigured to operate as normal GPIOs, USB-JTAG functionality will be disabled.

Strapping pin: GPIO4, GPIO5, GPIO8, GPIO9, and GPIO15 are strapping pins. For more information, please refer to datasheet.

For chip variants with an SiP flash built in, GPIO24 ~ GPIO30 are dedicated to connecting the SiP flash; GPIO10 ~ GPIO11 are not led out to any chip pins; therefore, only the remaining 22 GPIO pins are available.

For chip variants without an in-package flash, GPIO14 is not led out to any chip pins.

adding `#if defined(CONFIG_IDF_TARGET_ESP32C6)` whenever C3 was mentioned

lessons learned:
one doesn't simply `#if defined(ESP_IDF_VERSION) && ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)`   ;-P

* more debug output
* added my own fork of FastLED ( looks like more bugs to solve ....)

…into C6_experimental

... instead of reduced Tasmota-Arduino

* reduce debug level
* enable websockets (seems to work)
* move NO_FASTLED into chip section
* adjust LEDPIN and BTNPIN, to match my board