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/file--transfer.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 24.1.2, 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="file--transfer_1_" d="M31.36,31h-0.72v-5.64H22c-0.199,0-0.36-0.161-0.36-0.36v-8.64H1.36V31H0.64V16
+	c0-0.199,0.161-0.36,0.36-0.36h21c0.096,0,0.188,0.038,0.255,0.105l9,9c0.067,0.067,0.105,0.159,0.105,0.255
+	C31.36,25,31.36,31,31.36,31z M22.36,24.64h7.771l-7.771-7.771V24.64z M31,13.36H1c-0.199,0-0.36-0.161-0.36-0.36V1h0.72v11.64
+	h29.28V1h0.721v12C31.36,13.199,31.199,13.36,31,13.36z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>