Actually change SVG font to "Arimo, Arial, sans-serif" ([607e4ed])

Allow `--embedfont` for non-EAN/UPC SVG also (& update GUI)
SVG: add "fonts/normal_woff2.h"; use array syntax for it &
  "fonts/upcean_woff2.h" to avoid large strings
GUI: embed Arimo (via "fonts/normal_ttf.h"), same as OCRB
Change textgap max 5X -> 10X
README: make list of barcodes 2-col table for readability
win32/README: note Visual Studio 2022 re CMake

docs/images/code11.svg

@@ -5,7 +5,7 @@
  <g id="barcode" fill="#000000">
   <rect x="0" y="0" width="514" height="286" fill="#FFFFFF"/>
   <path d="M0 0h4.8v240h-4.8ZM9.6 0h9.6v240h-9.6ZM28.8 0h4.8v240h-4.8ZM38.4 0h9.6v240h-9.6ZM52.8 0h4.8v240h-4.8ZM62.4 0h4.8v240h-4.8ZM72 0h4.8v240h-4.8ZM86.4 0h4.8v240h-4.8ZM96 0h9.6v240h-9.6ZM110.4 0h9.6v240h-9.6ZM124.8 0h4.8v240h-4.8ZM134.4 0h9.6v240h-9.6ZM148.8 0h4.8v240h-4.8ZM163.2 0h4.8v240h-4.8ZM172.8 0h9.6v240h-9.6ZM187.2 0h9.6v240h-9.6ZM206.4 0h4.8v240h-4.8ZM216 0h4.8v240h-4.8ZM225.6 0h4.8v240h-4.8ZM240 0h4.8v240h-4.8ZM249.6 0h9.6v240h-9.6ZM264 0h4.8v240h-4.8ZM273.6 0h4.8v240h-4.8ZM283.2 0h9.6v240h-9.6ZM297.6 0h9.6v240h-9.6ZM312 0h4.8v240h-4.8ZM321.6 0h4.8v240h-4.8ZM331.2 0h4.8v240h-4.8ZM345.6 0h9.6v240h-9.6ZM360 0h4.8v240h-4.8ZM369.6 0h4.8v240h-4.8ZM379.2 0h4.8v240h-4.8ZM393.6 0h9.6v240h-9.6ZM408 0h4.8v240h-4.8ZM422.4 0h9.6v240h-9.6ZM436.8 0h4.8v240h-4.8ZM446.4 0h9.6v240h-9.6ZM460.8 0h4.8v240h-4.8ZM470.4 0h4.8v240h-4.8ZM480 0h4.8v240h-4.8ZM489.6 0h9.6v240h-9.6ZM508.8 0h4.8v240h-4.8Z"/>
-  <text x="256.8" y="273.6" text-anchor="middle" font-family="Helvetica, sans-serif" font-size="33.6">
+  <text x="256.8" y="273.6" text-anchor="middle" font-family="Arimo, Arial, sans-serif" font-size="33.6">
    921232096769
   </text>
  </g>