RMT mode messes up pin 0

[L0laapk3]

Hi there

I've noticed that, when using GPIO 0, using fastled with RMT mode messes up this pin. After a little digging I've come to the conclusion that the problem is caused by these lines:

FastLED-idf/components/FastLED-idf/platforms/esp/32/clockless_rmt_esp32.cpp

Lines 279 to 285 in 47f83d4

	rmt_config_t rmt_tx = RMT_DEFAULT_CONFIG_TX(gpio_num_t(0), rmt_channel);
	#else
	rmt_config_t rmt_tx;
	memset((void*) &rmt_tx, 0, sizeof(rmt_tx));
	rmt_tx.channel = rmt_channel;
	rmt_tx.rmt_mode = RMT_MODE_TX;
	rmt_tx.gpio_num = gpio_num_t(0); // The particular pin will be assigned later

From a quick scan of the original fastled code, it seems like they dont set it to pin zero first (anymore) (https://github.com/FastLED/FastLED/blob/master/src/platforms/esp/32/clockless_rmt_esp32.cpp#L109) so an update would hopefully be all thats needed to resolve this :)

[L0laapk3]

PS. not entirely related, but also not worth making an entire issue over, but it would be nice to enclose the entire clockless_rmt_esp32.cpp file in #ifndef FASTLED_ESP32_I2S #endif to avoid having to mess around in multiple places to enable RMT mode :)