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/audio-data.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 26.3.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<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="audio-data_00000143585752238416504790000001207133133142900649_" d="M16,31.36C7.53,31.36,0.64,24.47,0.64,16
+	S7.53,0.64,16,0.64S31.36,7.53,31.36,16S24.47,31.36,16,31.36z M16,1.36C7.927,1.36,1.36,7.927,1.36,16
+	c0,8.072,6.567,14.64,14.64,14.64c8.072,0,14.64-6.567,14.64-14.64S24.072,1.36,16,1.36z M23.36,23h-0.72V9h0.721L23.36,23L23.36,23
+	z M11.36,23h-0.72V9h0.72V23z M17.36,21h-0.72V11h0.72V21z M8.36,20H7.64v-8h0.72V20z M26.36,19h-0.72v-6h0.721L26.36,19L26.36,19z
+	 M14.36,19h-0.72v-6h0.72V19z M20.36,17h-0.72v-2h0.721L20.36,17L20.36,17z M5.36,17H4.64v-2h0.72C5.36,15,5.36,17,5.36,17z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>