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/colors.svg

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 29.1.0, SVG Export Plug-In . SVG Version: 9.03 Build 55587)  -->
+<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="colors_00000175316354171959028980000001918635249836752787_" d="M15,31.36H5c-0.199,0-0.36-0.161-0.36-0.36V1
+	c0-0.199,0.161-0.36,0.36-0.36h10c0.199,0,0.36,0.161,0.36,0.36v3.559l11.951,20.259c0.048,0.082,0.062,0.181,0.038,0.273
+	c-0.024,0.092-0.084,0.171-0.166,0.22l-5.873,3.445l0.039,0.155c0.049,0.192-0.066,0.388-0.259,0.438l-5.73,1.473V31
+	C15.36,31.199,15.199,31.36,15,31.36z M5.36,30.64h9.28v-5.28H5.36V30.64z M15.36,8.219v21.859l5.203-1.338L15.36,8.219z
+	 M15.665,6.493l5.46,21.535l5.382-3.156L15.665,6.493z M5.36,24.64h9.28v-5.28H5.36V24.64z M5.36,18.64h9.28v-5.28H5.36V18.64z
+	 M5.36,12.64h9.28V1.36H5.36V12.64z M10,8.36C9.25,8.36,8.64,7.75,8.64,7S9.25,5.64,10,5.64S11.36,6.25,11.36,7S10.75,8.36,10,8.36z
+	 M10,6.36C9.647,6.36,9.36,6.647,9.36,7S9.647,7.64,10,7.64S10.64,7.353,10.64,7S10.353,6.36,10,6.36z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>