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/contract.svg

@@ -0,0 +1,15 @@
+<?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="contract" d="M27,31.36H8c-0.199,0-0.36-0.161-0.36-0.36v-1.64H6c-0.199,0-0.36-0.161-0.36-0.36v-1.64H5
+	c-0.199,0-0.36-0.161-0.36-0.36V3c0-0.199,0.161-0.36,0.36-0.36h4.64V2c0-0.199,0.161-0.36,0.36-0.36h1.64V1
+	c0-0.199,0.161-0.36,0.36-0.36h4c0.199,0,0.36,0.161,0.36,0.36v0.64H18c0.199,0,0.36,0.161,0.36,0.36v0.64H23
+	c0.199,0,0.36,0.161,0.36,0.36v1.64H25c0.199,0,0.36,0.161,0.36,0.36v1.64H27c0.199,0,0.36,0.161,0.36,0.36v24
+	C27.36,31.199,27.199,31.36,27,31.36z M8.36,30.64h18.28V7.36h-1.28V29c0,0.199-0.161,0.36-0.36,0.36H8.36V30.64z M6.36,28.64h18.28
+	V5.36h-1.28V27c0,0.199-0.161,0.36-0.36,0.36H6.36V28.64z M5.36,26.64h17.28V3.36h-4.28V4c0,0.199-0.161,0.36-0.36,0.36h-8
+	C9.801,4.36,9.64,4.199,9.64,4V3.36H5.36V26.64z M10.36,3.64h7.28V2.36H16c-0.199,0-0.36-0.161-0.36-0.36V1.36h-3.28V2
+	c0,0.199-0.161,0.36-0.36,0.36h-1.64C10.36,2.36,10.36,3.64,10.36,3.64z M20.5,21.36h-13v-0.72h13V21.36z M20.5,17.36h-13v-0.72h13
+	V17.36z M20.5,13.36h-13v-0.72h13V13.36z M20.5,9.36h-13V8.64h13V9.36z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>