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/navaid-vor-tac.svg

@@ -0,0 +1 @@
+<svg id="Layer_1" data-name="Layer 1" width="32" height="32" viewBox="0 0 32 32"> <circle cx="16" cy="14" r="2"/> <path d="M29.8682,10.5039l-4-7a.9992.9992,0,0,0-1.3828-.3613L19.7231,6H12.2769L7.5146,3.1426a.9992.9992,0,0,0-1.3828.3613l-4,7a1,1,0,0,0,.3536,1.3535l4.7758,2.8657L11,21.2656V27a1,1,0,0,0,1,1h8a1,1,0,0,0,1-1V21.2656l3.7388-6.5425,4.7758-2.8657A1,1,0,0,0,29.8682,10.5039ZM18.8484,21H13.1516L8.5757,12.9922,11.4287,8h9.1426l2.853,4.9922Z" transform="translate(0 0)"/> </svg>