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/settings-adjust.svg

@@ -0,0 +1,7 @@
+<!-- Generator: Adobe Illustrator 24.0.3, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
+<svg version="1.1" id="icon" x="0px" y="0px" width="32px" height="32px" viewBox="0 0 32 32" style="enable-background:new 0 0 32 32;" xml:space="preserve">
+<style type="text/css"> .st0{fill:none;}
+</style>
+<title>settings--adjust</title>
+<path d="M30,8h-4.1c-0.5-2.3-2.5-4-4.9-4s-4.4,1.7-4.9,4H2v2h14.1c0.5,2.3,2.5,4,4.9,4s4.4-1.7,4.9-4H30V8z M21,12c-1.7,0-3-1.3-3-3 s1.3-3,3-3s3,1.3,3,3S22.7,12,21,12z"/>
+<path d="M2,24h4.1c0.5,2.3,2.5,4,4.9,4s4.4-1.7,4.9-4H30v-2H15.9c-0.5-2.3-2.5-4-4.9-4s-4.4,1.7-4.9,4H2V24z M11,20c1.7,0,3,1.3,3,3 s-1.3,3-3,3s-3-1.3-3-3S9.3,20,11,20z"/> </svg>