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/curve--linear.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 27.5.0, 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="curve--linear_00000103250237707718652690000005581125909987770262_" d="M21.591,27.473L19.109,24h1.275l1.777,2.605h0.041
+	L24.047,24h1.207l-2.469,3.391L25.308,31h-1.275l-1.818-2.74h-0.041L20.208,31H19L21.591,27.473z M27.244,26.027v-0.613h1.1v-2.843
+	h-0.052l-0.871,1.032l-0.47-0.395l0.992-1.181h1.14v3.387H30v0.613C30,26.027,27.244,26.027,27.244,26.027z M16.36,31h-0.72V16.36
+	H9.433l-8.248,4.949l-0.37-0.617l7.219-4.332H1v-0.72h8.233l6.407-3.844V1h0.72v10.364l14.455-8.673l0.371,0.617L16.36,12.204v3.437
+	H31v0.72H16.36V31z M10.633,15.64h5.007v-3.004L10.633,15.64z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>