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/ibm-cloud-citrix-daas.svg

@@ -0,0 +1,11 @@
+<!-- Generator: Adobe Illustrator 26.3.1, 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>
+<rect x="19" y="23" width="4" height="4"/>
+<rect x="26" y="23" width="4" height="4"/>
+<rect x="19" y="16" width="4" height="4"/>
+<rect x="26" y="16" width="4" height="4"/>
+<path d="M16,4c-4.3,0-7.9,3-8.8,7.1c-3,0.6-5.2,3.3-5.2,6.4C2,21.1,4.9,24,8.5,24H16v-2H8.5C6,22,4,20,4,17.5c0-2.3,1.8-4.3,4.1-4.5 L9,13l0.1-0.8C9.5,8.6,12.5,6,16,6c3.9,0,7,3.1,7,7h2C25,8,21,4,16,4z"/>
+<rect id="_x3C_Transparent_Rectangle_x3E__232_" y="0" class="st0" width="32" height="32"/>
+</svg>