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/austin--texas.svg

@@ -0,0 +1,16 @@
+<?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="austin--texas_00000070104574309190919870000008792168047643476392_" d="M23,31.36h-2c-0.071,0-0.141-0.021-0.199-0.061
+	l-3-2C17.7,29.232,17.64,29.12,17.64,29v-2.891l-3.833-5.749h-2.658l-1.895,1.895c-0.07,0.07-0.159,0.135-0.267,0.104
+	c-0.099-0.003-0.193-0.047-0.259-0.122l-7-8c-0.093-0.106-0.115-0.257-0.057-0.386C1.73,13.723,1.859,13.64,2,13.64h7.64V1
+	c0-0.199,0.161-0.36,0.36-0.36h7c0.199,0,0.36,0.161,0.36,0.36v4.777l3.725,1.863H30c0.199,0,0.36,0.161,0.36,0.36v12
+	c0,0.116-0.057,0.226-0.151,0.293l-6.849,4.893V31C23.36,31.199,23.199,31.36,23,31.36z M21.109,30.64h1.53V25
+	c0-0.116,0.057-0.226,0.151-0.293l6.849-4.893V8.36H21c-0.056,0-0.111-0.013-0.161-0.038l-4-2C16.717,6.261,16.64,6.136,16.64,6
+	V1.36h-6.28V14c0,0.199-0.161,0.36-0.36,0.36H2.793l6.224,7.114l1.728-1.729c0.067-0.067,0.159-0.105,0.254-0.105h3
+	c0.121,0,0.233,0.061,0.299,0.161l4,6c0.039,0.059,0.061,0.128,0.061,0.199v2.808L21.109,30.64z M23.745,19.255L23,18.509
+	l-0.745,0.746l-0.51-0.51L22.491,18l-0.746-0.745l0.51-0.509L23,17.491l0.745-0.746l0.51,0.509L23.509,18l0.746,0.745L23.745,19.255
+	z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>