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/carbon.svg

@@ -0,0 +1,12 @@
+<?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="carbon_00000156547666265842648060000016787015470199604149_" d="M14,31.36c-0.062,0-0.124-0.017-0.18-0.048l-10-5.75
+	c-0.111-0.064-0.18-0.184-0.18-0.312v-11.5c0-0.129,0.069-0.248,0.18-0.312l10-5.75c0.111-0.064,0.248-0.064,0.359,0l10,5.75
+	c0.111,0.064,0.181,0.183,0.181,0.312v11.5c0,0.129-0.069,0.248-0.181,0.312l-10,5.75C14.124,31.344,14.062,31.36,14,31.36z
+	 M4.36,25.042L14,30.585l9.64-5.543V13.958L14,8.415l-9.64,5.543C4.36,13.958,4.36,25.042,4.36,25.042z M28.36,18h-0.72V6.958
+	L18,1.415L8.18,7.062L7.82,6.438l10-5.75c0.111-0.064,0.248-0.064,0.359,0l10,5.75C28.29,6.502,28.36,6.621,28.36,6.75
+	C28.36,6.75,28.36,18,28.36,18z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>