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/meter.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="meter_1_" d="M16,31.36C7.53,31.36,0.64,24.47,0.64,16S7.53,0.64,16,0.64S31.36,7.53,31.36,16S24.47,31.36,16,31.36z
+	 M16,1.36C7.927,1.36,1.36,7.927,1.36,16c0,8.072,6.567,14.64,14.64,14.64c8.072,0,14.64-6.567,14.64-14.64S24.072,1.36,16,1.36z
+	 M4.922,22.812l-0.36-0.623l0.866-0.5l0.36,0.623L4.922,22.812z M27.079,22.812l-3.899-2.251l0.359-0.623l3.899,2.251L27.079,22.812
+	z M29,16.36h-4v-0.72h4V16.36z M4.5,16.36H3v-0.72h1.5V16.36z M16.18,16.312l-0.36-0.624l11.259-6.5l0.359,0.624L16.18,16.312z
+	 M6.32,10.827L4.562,9.812l0.36-0.624l1.758,1.016L6.32,10.827z M20.931,8.18l-0.623-0.36l1.881-3.258l0.623,0.36L20.931,8.18z
+	 M10.492,7.18L9.188,4.922l0.624-0.36l1.304,2.258L10.492,7.18z M16.36,6h-0.72V3h0.72V6z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>