wiki: add Carbon Design System icons (2673) + pictograms (1000)

- 2673 SVG icons from @carbon/icons v11.82.0 (~2.5 MB)
- 1000 SVG pictograms from Carbon Design System (~2.0 MB)
- Updated 00-overview.md with asset structure and category listing

All icons: 32x32, fill: currentColor, optimized SVG
All pictograms: 24x24, fill: currentColor, SVG

assets/icons/carbon-pictograms/half-note.svg

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 29.1.0, SVG Export Plug-In . SVG Version: 9.03 Build 55587)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve">
+<path id="half-note_00000110467484277169557640000014994950401802572944_" d="M16,28.36c-2.404,0-4.36-1.956-4.36-4.36
+	s1.956-4.36,4.36-4.36c1.519,0,2.859,0.781,3.64,1.963V4h0.721v20C20.36,26.404,18.404,28.36,16,28.36z M16,20.36
+	c-2.007,0-3.64,1.633-3.64,3.64s1.633,3.64,3.64,3.64s3.64-1.633,3.64-3.64S18.007,20.36,16,20.36z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>