Bug fix release for ESP32-C3

Fix signature (unsigned int&& is not identical to uint32_t&& for ESP32-C3 RISV V compiler)

Bug fix release: Significantly improved rx error rate on high throughput.

In rxBits(), check for no new intermediate ISR data, inserting extraneous stop bits breaks rx.

Bug fix: Only add faux stop bit after a start bit was detected

Does not insert stop bits while already stop bit idling.

Bug fix release for rx performance and stop bit timing

Word tails could be rounded down to full ms.

Maintenance release 6.12.3: better dependency declarations for Platformio

Prepare bug fix release version 6.12.3: better dependency declaration…

Bug fix release

Inlining push() functions that must be in IRAM for calling from ISRs, due to gcc issue https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70435

6.12.1

Fix outdated README, source comments for readParity. Fix dropped 0xff…

6.12.0

Stream::send() landed in ESP8266 Arduino core, finish adoption here. …

6.11.7

Quick fix release for deprecated ICACHE_RAM_ATTR in ESP8266 Arduino c…

Fix documentation and comments for buffer optimizations in example

Also, swsertest has received a #define that showcases how switching the HW serial to GPIOs and using EspSoftwareSerial for logging instead can be accomplished.