chore(assets): store all project's assets in main repository

I have deleted the `topola-graphics` repository.

README.md

@@ -45,18 +45,21 @@ repository on [GitHub](https://github.com/mikwielgus/topola).
 
 ## Licence
 
-Topola is licensed under the [MIT licence](LICENSE).
+Topola is licensed under the [MIT licence](LICENSE). Files present in
+the `assets/` directory are dual-licensed as under MIT or
+[Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/)
+licence.
 
 ## Gallery
 
 ![Animation. There's a rubber band-like trace following cursor,
 navigating a very simple maze. The maze and the trace are red, the
 background is solid black but also very slightly white and dark
-blue.](./assets/interactive_routing.gif)
+blue.](./assets/screencasts/pre-egui_interactive_routing.gif "Interactive routing")
 
 ![Animation showing a trace, behaving like a rubber band, routed around
 obstacles step by step. Attempted alternative paths and a guiding mesh
-are shown.](./assets/mesh_visualization.gif)
+are shown.](./assets/screencasts/pre-egui_debug_visualization.gif "Debug visualization")
 
 ![Animation. There are two upward barriers, with some space between tem,
 around which four rubberband traces, one over another, are wrapped.
@@ -64,8 +67,7 @@ Enter mouse cursor. The cursor begins to stretch the left barrier to the
 right. As it's stretched, the traces cease to be wrapped around the
 right barrier, becoming "free". The traces and the barrier are
 two-dimensional and all solid red. The background is black but also very
-slightly white and blue.](./assets/unwrapping_bends.gif "Unwrapping
-bends")
+slightly white and blue.](./assets/screencasts/pre-egui_unwrapping_bends.gif "Unwrapping bends")
 
 ![This animation shows four traces wrapped around a vertical barrier
 like rubberbands. Computer cursor appears and starts dragging the
@@ -73,7 +75,7 @@ barrier's top end left and right, up and down, elastically stretching
 the barrier and having the traces continue being wrapped on the barrier
 regardless of its position. The traces and the barrier are all solid
 red. The background is black but also very slightly white and
-blue.](./assets/dragging_with_bends.gif "Dragging with bends")
+blue.](./assets/screencasts/pre-egui_dragging_with_bends.gif "Dragging with bends")
 
 ![Animation. There is an upward barrier in the middle and dots on the
 left and right of it, four each. A trace is drawn from the leftmost dot
@@ -82,15 +84,14 @@ from the second leftmost dot on the left to the second rightmost dot on
 the right, displacing the previous trace so that there's space for the
 new one. Same happens for the remaining dots. The dots, traces and
 barrier are all solid red. The background is black but also very
-slightly white and blue.](./assets/shoving_around.gif "Shoving traces
-under other traces")
+slightly white and blue.](./assets/screencasts/pre-egui_shoving_around.gif "Shoving traces under other traces")
 
 ![Animation showing three red-colored traces pass around a barrier.
 Trace bends are not aligned to a grid unlike most PCB layouts these days
 (this is called "topological routing"). The traces and the barrier are
 all solid red. The background is black but also very slightly white and
-blue.](./assets/stacked_bends.png "Stacking bends")
+blue.](./assets/screenshots/pre-egui_stacked_bends.png "Stacking bends")
 
 ![Animation showing a trace zigzagging around two barriers. The trace
 and the barriers are all solid red. The background is black but also
-very slightly white and blue.](./assets/zigzag.png "Zigzag")
+very slightly white and blue.](./assets/screenshots/pre-egui_zigzag.png "Zigzag")

assets/logo.svg

@@ -1,117 +0,0 @@
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-
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-   xmlns:svg="http://www.w3.org/2000/svg">
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index.html

@@ -18,7 +18,7 @@ SPDX-License-Identifier: MIT
     <!-- this is the base url relative to which other urls will be constructed. trunk will insert this from the public-url option -->
     <base data-trunk-public-url />
 
-    <link data-trunk rel="icon" href="assets/favicon.ico" />
+    <link data-trunk rel="icon" href="assets/logos/topola/icon.svg" />
 
 
     <link data-trunk rel="copy-file" href="assets/sw.js"/>