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/alien.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="alien_00000180356528288662526280000005209168479416726190_" d="M16,31.376l-0.104-0.031
+	c-4.529-1.358-7.883-4.239-9.971-8.563C3.937,18.662,3.64,14.258,3.64,12C3.64,4.674,8.029,0.64,16,0.64S28.36,4.674,28.36,12
+	c0,2.258-0.297,6.662-2.286,10.781c-2.087,4.324-5.441,7.205-9.971,8.563L16,31.376z M16,1.36C8.494,1.36,4.36,5.139,4.36,12
+	c0,13.526,8.055,17.52,11.64,18.624C19.585,29.52,27.64,25.526,27.64,12C27.64,5.139,23.506,1.36,16,1.36z M18,21.36h-0.36V21
+	c0-0.073,0.096-7.36,8.36-7.36h0.36V14C26.36,14.074,26.265,21.36,18,21.36z M25.62,14.366c-6.243,0.183-7.118,4.891-7.24,6.269
+	C24.623,20.451,25.498,15.743,25.62,14.366z M14.36,21.36H14c-8.264,0-8.36-7.287-8.36-7.36v-0.36H6c8.264,0,8.36,7.287,8.36,7.36
+	V21.36z M6.38,14.366c0.122,1.377,0.997,6.085,7.24,6.269C13.498,19.257,12.623,14.549,6.38,14.366z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>