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/folder.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 24.3.0, 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="folder" d="M30,27.36H2c-0.75,0-1.36-0.61-1.36-1.36V4c0-0.75,0.61-1.36,1.36-1.36h8.5c0.425,0,0.833,0.203,1.088,0.543
+	l1.416,2.223C13.108,5.544,13.299,5.64,13.5,5.64H30c0.75,0,1.36,0.61,1.36,1.36v19C31.36,26.75,30.75,27.36,30,27.36z M2,3.36
+	C1.647,3.36,1.36,3.647,1.36,4v22c0,0.353,0.287,0.64,0.64,0.64h28c0.353,0,0.64-0.287,0.64-0.64V7c0-0.353-0.287-0.64-0.64-0.64
+	H13.5c-0.426,0-0.833-0.203-1.088-0.544l-1.416-2.223C10.892,3.456,10.7,3.36,10.5,3.36H2z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>