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/logo-glassdoor.svg

@@ -0,0 +1 @@
+<svg id="icon" width="32" height="32" viewBox="0 0 32 32"><title>logo--glassdoor</title><path class="cls-1" d="M10.8281,28H21.1719a3.43,3.43,0,0,0,3.43-3.43V10.3306h-3.43V24.57H7.3981A3.43,3.43,0,0,0,10.8281,28Z"/><path class="cls-1" d="M21.1719,4H10.8281a3.43,3.43,0,0,0-3.43,3.43v14.24h3.43V7.43H24.6019A3.43,3.43,0,0,0,21.1719,4Z"/></svg>