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/beijing--tower.svg

@@ -0,0 +1,13 @@
+<?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="beijing--tower_1_" d="M31.35,30.913l-6-24c-0.022-0.087-0.075-0.163-0.15-0.212l-9-6c-0.009-0.006-0.02-0.007-0.029-0.012
+	c-0.023-0.013-0.046-0.021-0.072-0.029c-0.023-0.007-0.045-0.012-0.069-0.014C16.019,0.645,16.01,0.64,16,0.64
+	c-0.016,0-0.029,0.007-0.045,0.009c-0.014,0.002-0.029-0.002-0.043,0.002l-8,2C7.784,2.683,7.683,2.784,7.651,2.913l-7,28
+	c-0.027,0.107-0.003,0.221,0.065,0.309C0.785,31.309,0.889,31.36,1,31.36h30c0.111,0,0.216-0.052,0.284-0.139
+	C31.352,31.134,31.376,31.021,31.35,30.913z M17.501,11.36l3.071,12.28h-9.11l3.07-12.28H17.501z M18.244,11.36h3.507l4.788,19.28
+	H7.462l4.851-19.28h1.476l-3.25,13h10.954L18.244,11.36z M8.297,3.297l7.343-1.836v9.179h-3.889l-5.032,20H1.461L8.297,3.297z
+	 M27.282,30.64l-4.968-20H16.36V1.673l8.325,5.55l5.854,23.417H27.282z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>