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/forecasting.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 26.3.1, 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="forecasting_00000137829375261114865080000015513231917919727023_" d="M16,0.64C7.53,0.64,0.64,7.53,0.64,16
+	S7.53,31.36,16,31.36S31.36,24.47,31.36,16S24.47,0.64,16,0.64z M16,30.64c-5.443,0-10.202-2.985-12.725-7.405L11,15.509
+	l5.746,5.746c0.141,0.141,0.368,0.141,0.509,0l9.385-9.385V14h0.721v-3.36H24v0.72h2.131L17,20.491l-5.746-5.746
+	c-0.141-0.141-0.368-0.141-0.509,0l-7.826,7.826C1.922,20.595,1.36,18.361,1.36,16C1.36,7.927,7.927,1.36,16,1.36
+	c8.072,0,14.64,6.567,14.64,14.64C30.64,24.072,24.072,30.64,16,30.64z"/>
+<rect id="_Transparent_Rectangle" style="fill:none;" width="32" height="32"/>
+</svg>