Клиент: начальный импорт кодовой базы

Основа — Horizon (MIT). История апстрима не переносится: этот репозиторий ведёт свою.

THIRD_PARTY_NOTICES.md

@@ -0,0 +1,21 @@
+# Third-party notices
+
+## wgpu-hal
+
+`third_party/wgpu-hal` is [wgpu-hal](https://github.com/gfx-rs/wgpu) 30.0.1 by the gfx-rs
+developers, with one upstream fix applied
+([gfx-rs/wgpu#10124](https://github.com/gfx-rs/wgpu/pull/10124)). It is licensed under MIT or
+Apache-2.0; both licenses are in that folder (`LICENSE.MIT`, `LICENSE.APACHE`).
+
+## Pixelify Sans
+
+`crates/horizon-theme/fonts/PixelifySans-*.ttf` is [Pixelify Sans](https://github.com/eifetx/Pixelify-Sans)
+by The Pixelify Sans Project Authors, licensed under the SIL Open Font License 1.1
+(`crates/horizon-theme/fonts/OFL-PixelifySans.txt`).
+
+## Pixelarticons
+
+`crates/horizon-theme/icons/pixel/*.svg` are icons from
+[Pixelarticons](https://github.com/halfmage/pixelarticons) by Gerrit Halfmann, under the MIT
+license (`crates/horizon-theme/icons/pixel/LICENSE-pixelarticons.txt`). `star.svg` is Horizon's own, drawn on
+the same grid.