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/build-tool.svg

@@ -0,0 +1,7 @@
+<!-- Generator: Adobe Illustrator 26.3.1, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
+<svg version="1.1" id="icon" x="0px" y="0px" width="32px" height="32px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve">
+<style type="text/css"> .st0{fill:none;}
+</style>
+<path d="M28,14h-1V7c0-1.1-0.9-2-2-2h-6v2h6v7h-1c-1.1,0-2,0.9-2,2v9H9.9c-0.4-1.4-1.5-2.5-2.9-2.9V7h6.2l-2.6,2.6L12,11l5-5l-5-5 l-1.4,1.4L13.2,5H7C5.9,5,5,5.9,5,7v15.1c-1.7,0.4-3,2-3,3.9c0,2.2,1.8,4,4,4c1.9,0,3.4-1.3,3.9-3H22v1c0,1.1,0.9,2,2,2h4 c1.1,0,2-0.9,2-2V16C30,14.9,29.1,14,28,14z M6,28c-1.1,0-2-0.9-2-2s0.9-2,2-2c1.1,0,2,0.9,2,2S7.1,28,6,28z M24,28V16h4v12H24z"/>
+<rect id="_x3C_Transparent_Rectangle_x3E__589_" class="st0" width="32" height="32"/>
+</svg>