Add openrgb-hue: Hue scene gradients for OpenRGB lights

Applies gradients derived from 103 bundled Philips Hue scenes to
OpenRGB-controlled LEDs, with six mapping modes (sequence, per-device,
per-zone, matrix, mirror, shuffle) and five animation modes (static,
scroll, pingpong, pulse, wave). Typer/Rich CLI with dry-run preview,
device/zone targeting, and a scenes-update command to refresh the
bundled dataset from its source gist.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

LICENSE

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+MIT License
+
+Copyright (c) 2026 Sebastian Krüger
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+Note: this license covers the code in this repository. The bundled Hue scene
+dataset (src/openrgb_hue/data/philips-hue-scenes.csv) is third-party data;
+see src/openrgb_hue/data/ATTRIBUTION.txt for its provenance and licensing note.