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/ibm--z-and-linuxone-single-frame.svg

@@ -0,0 +1,15 @@
+<?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">
+<g id="ibm--z-and-linuxone-single-frame_1_">
+	<path d="M21,30.36H11c-0.199,0-0.36-0.161-0.36-0.36V2c0-0.199,0.161-0.36,0.36-0.36h10c0.199,0,0.36,0.161,0.36,0.36v28
+		C21.36,30.199,21.199,30.36,21,30.36z M19.36,29.64h1.279V2.36H19.36V29.64z M12.869,29.64h5.771V24.3l-2.331,3.886
+		c-0.041,0.067-0.102,0.119-0.175,0.148L12.869,29.64z M11.36,23.36v6.108l4.394-1.758l2.61-4.351L11.36,23.36L11.36,23.36z
+		 M12.3,22.64h6.34v-5.56l-2.352,3.136c-0.028,0.037-0.063,0.069-0.103,0.093L12.3,22.64z M11.36,16.36v6.004l4.395-2.637
+		l2.526-3.368L11.36,16.36L11.36,16.36z M11.72,15.64h6.919V9.636l-4.394,2.637L11.72,15.64z M11.36,9.36v5.56l2.352-3.136
+		c0.028-0.038,0.063-0.069,0.103-0.093L17.7,9.36H11.36z M11.636,8.64h7.004V2.532l-4.394,1.757L11.636,8.64z M11.36,2.36V7.7
+		l2.332-3.885c0.041-0.067,0.102-0.12,0.175-0.149l3.265-1.306H11.36z"/>
+</g>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>