AnimatedPixelClock v2.3.1

What's new

• New board: the Waveshare ESP32-S3-RGB-Matrix driver board is now supported and
  can be flashed from the web flasher. It carries the HUB75 header and the output
  buffers, so there is no per-GPIO wiring; the ribbon cables and panel power still
  get connected. Its 32 MB flash leaves 23 MB for custom animations.
• New clock style: Doom Fire. The PSX Doom fire effect, with the digits as
  heat sources burning white-hot over a fire line; a changed digit burns away
  before the new one re-ignites.
• The README now has a gallery of every animated style rebuilding all four digits
  at the hour rollover.

Install

• New device: flash firmware-v2.3.1-<board>.bin at 0x0, or use the web
  flasher at https://pixelclock.stolaris.dev/
• Existing device: upload OTA_ONLY_firmware-v2.3.1-<board>.bin on the clock's
  Firmware Update page. Do not upload a full image as an OTA update.
• Windows: download and run pc_stats_monitor_v4.exe, no Python needed.

Boards: wroom = ESP32-S3-WROOM-1 N16R8 (16 MB), supermini =
ESP32-S3-Zero / Super Mini (4 MB), waveshare = Waveshare ESP32-S3-RGB-Matrix
(32 MB). Verify downloads against SHA256SUMS.txt.