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/bus.svg

@@ -0,0 +1,18 @@
+<?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="bus_1_" d="M28,31.36h-3c-0.199,0-0.36-0.161-0.36-0.36v-3.64H7.36V31c0,0.199-0.161,0.36-0.36,0.36H4
+	c-0.199,0-0.36-0.161-0.36-0.36v-4h0.108c-0.666-0.418-1.108-1.158-1.108-2V3c0-1.301,1.059-2.36,2.36-2.36h22
+	c1.302,0,2.36,1.059,2.36,2.36v22c0,0.842-0.443,1.582-1.108,2h0.108v4C28.36,31.199,28.199,31.36,28,31.36z M25.36,30.64h2.279
+	v-3.368c-0.203,0.058-0.418,0.089-0.64,0.089h-1.64L25.36,30.64L25.36,30.64z M4.36,30.64h2.28v-3.28H5
+	c-0.222,0-0.437-0.031-0.64-0.089V30.64z M3.36,16.36V25c0,0.904,0.736,1.64,1.64,1.64h22c0.904,0,1.64-0.735,1.64-1.64v-8.64H3.36z
+	 M3.36,15.64h25.28V4.36H3.36V15.64z M3.36,3.64h25.28V3c0-0.904-0.735-1.64-1.64-1.64H5C4.096,1.36,3.36,2.096,3.36,3V3.64z
+	 M25,24.36c-1.302,0-2.36-1.059-2.36-2.36s1.059-2.36,2.36-2.36s2.36,1.059,2.36,2.36S26.302,24.36,25,24.36z M25,20.36
+	c-0.904,0-1.64,0.735-1.64,1.64s0.735,1.64,1.64,1.64s1.64-0.735,1.64-1.64S25.904,20.36,25,20.36z M7,24.36
+	c-1.301,0-2.36-1.059-2.36-2.36S5.699,19.64,7,19.64S9.36,20.698,9.36,22S8.301,24.36,7,24.36z M7,20.36
+	c-0.904,0-1.64,0.735-1.64,1.64S6.096,23.64,7,23.64S8.64,22.904,8.64,22S7.904,20.36,7,20.36z M21,23.36H11v-0.72h10V23.36z
+	 M21,21.36H11v-0.72h10V21.36z M21.688,13.644l-4-6.928l0.623-0.36l4,6.928L21.688,13.644z M31.36,11h-0.72V5h0.721L31.36,11
+	L31.36,11z M1.36,11H0.64V5h0.72V11z M22.688,10.912l-2-3.464l0.623-0.36l2,3.464L22.688,10.912z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>