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/coat--hanger.svg

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 24.1.2, 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="coat--hanger_1_" d="M29.38,23.114l-13.02-9.3V11.34c1.684-0.18,3-1.61,3-3.341c0-1.853-1.508-3.36-3.36-3.36
+	S12.64,6.147,12.64,8h0.72c0-1.456,1.185-2.64,2.64-2.64c1.456,0,2.64,1.185,2.64,2.64s-1.184,2.64-2.64,2.64
+	c-0.199,0-0.36,0.161-0.36,0.36v2.814l-13.02,9.3c-0.614,0.438-0.98,1.151-0.98,1.905c0,1.291,1.05,2.341,2.34,2.341h24.04
+	c1.291,0,2.341-1.05,2.341-2.341C30.36,24.265,29.994,23.553,29.38,23.114z M28.02,26.64H3.98c-0.894,0-1.621-0.727-1.621-1.62
+	c0-0.522,0.254-1.016,0.679-1.319L16,14.442L28.962,23.7c0.425,0.304,0.678,0.797,0.678,1.319
+	C29.64,25.913,28.913,26.64,28.02,26.64z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>