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/repo-artifact.svg

@@ -0,0 +1,8 @@
+<!-- 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="M30,24v-2h-2.1c-0.1-0.6-0.4-1.2-0.7-1.8l1.5-1.5l-1.4-1.4l-1.5,1.5c-0.5-0.3-1.1-0.6-1.8-0.7V16h-2v2.1 c-0.6,0.1-1.2,0.4-1.8,0.7l-1.5-1.5l-1.4,1.4l1.5,1.5c-0.3,0.5-0.6,1.1-0.7,1.8H16v2h2.1c0.1,0.6,0.4,1.2,0.7,1.8l-1.5,1.5l1.4,1.4 l1.5-1.5c0.5,0.3,1.1,0.6,1.8,0.7V30h2v-2.1c0.6-0.1,1.2-0.4,1.8-0.7l1.5,1.5l1.4-1.4l-1.5-1.5c0.3-0.5,0.6-1.1,0.7-1.8H30z M23,26 c-1.7,0-3-1.3-3-3s1.3-3,3-3s3,1.3,3,3S24.7,26,23,26z"/>
+<path d="M28,8H16l-3.4-3.4C12.2,4.2,11.7,4,11.2,4H4C2.9,4,2,4.9,2,6v20c0,1.1,0.9,2,2,2h10v-2H4V6h7.2l3.4,3.4l0.6,0.6H28v5h2v-5 C30,8.9,29.1,8,28,8z"/>
+<rect id="_x3C_Transparent_Rectangle_x3E__589_" class="st0" width="32" height="32"/>
+</svg>