Import ESP_UniClock (upstream 1189810)

Vendored from https://github.com/gpeter62/ESP_UniClock: the sketch
source, the web UI and the libraries the ESP8266 build needs, unpacked
from the bundled zips. Adds a PlatformIO project for the ESP-12. The
source is unchanged; local changes follow as separate commits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

firmware/uniclock/lib/NeoPixelBus_by_Makuna/library.json

@@ -0,0 +1,19 @@
+{
+  "name": "NeoPixelBus",
+  "keywords": "NeoPixel, WS2811, WS2812, WS2813, WS2821, SK6812, DotStar, APA102, SK9822, APA106, LPD8806, LPD6803, P9813, TM1829, TM1814, TM1914, TX1812, WS2801, SM16803, SM16823, SM16804, SM16824, DMX512, RGB, RGBW",
+  "description": "A library that makes controlling NeoPixels (WS2812x and many others) and DotStars (SK6812 and many others) easy.  Supports most Arduino platforms, including async hardware support for Esp8266, Esp32, and Nrf52 (Nano 33 BLE).  Support for RGBW pixels and 7 Segment LED direct driven.  Includes seperate RgbColor, RgbwColor, Rgb16Color, Rgb48Color, HslColor, and HsbColor objects.  Includes an animator class that helps create asyncronous animations. For all platforms; there are two methods of sending DotStar data, hardware SPI and software SPI.",
+  "homepage": "https://github.com/Makuna/NeoPixelBus/wiki",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Makuna/NeoPixelBus"
+  },
+  "version": "2.7.0",
+  "frameworks": "arduino",
+  "platforms": "*",
+  "dependencies": [
+    {
+      "name": "SPI"
+    }
+  ]
+}
+