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/link.svg

@@ -0,0 +1,13 @@
+<?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="link_00000089548903227719097550000011231956678710052786_" d="M8,30.36c-1.699,0-3.296-0.662-4.497-1.863
+	C2.301,27.296,1.64,25.698,1.64,24s0.662-3.296,1.863-4.497l6.243-6.243l0.509,0.509l-6.243,6.244C2.947,21.077,2.36,22.493,2.36,24
+	s0.587,2.923,1.652,3.987C5.077,29.053,6.494,29.64,8,29.64s2.923-0.587,3.988-1.652l6.242-6.242l0.51,0.51l-6.243,6.242
+	C11.296,29.698,9.699,30.36,8,30.36z M10.254,22.255l-0.509-0.51l12-12l0.51,0.509L10.254,22.255z M22.255,18.74l-0.51-0.51
+	l6.242-6.242C29.053,10.923,29.64,9.506,29.64,8s-0.587-2.923-1.652-3.988C26.923,2.947,25.507,2.36,24,2.36
+	s-2.923,0.587-3.987,1.652l-6.244,6.243L13.26,9.746l6.243-6.243C20.704,2.301,22.302,1.64,24,1.64s3.296,0.662,4.497,1.863
+	S30.36,6.301,30.36,8s-0.662,3.296-1.863,4.497L22.255,18.74z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>