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/code128_box.svg

@@ -5,7 +5,7 @@
  <g id="barcode" fill="#000000">
   <rect x="0" y="0" width="836" height="382" fill="#FFFFFF"/>
   <path d="M96 48h9.6v240h-9.6ZM110.4 48h4.8v240h-4.8ZM124.8 48h4.8v240h-4.8ZM148.8 48h9.6v240h-9.6ZM163.2 48h14.4v240h-14.4ZM192 48h4.8v240h-4.8ZM201.6 48h4.8v240h-4.8ZM216 48h9.6v240h-9.6ZM244.8 48h4.8v240h-4.8ZM254.4 48h4.8v240h-4.8ZM278.4 48h9.6v240h-9.6ZM292.8 48h4.8v240h-4.8ZM307.2 48h4.8v240h-4.8ZM316.8 48h19.2v240h-19.2ZM345.6 48h4.8v240h-4.8ZM360 48h9.6v240h-9.6ZM374.4 48h9.6v240h-9.6ZM393.6 48h9.6v240h-9.6ZM412.8 48h9.6v240h-9.6ZM427.2 48h14.4v240h-14.4ZM456 48h4.8v240h-4.8ZM465.6 48h4.8v240h-4.8ZM475.2 48h9.6v240h-9.6ZM494.4 48h4.8v240h-4.8ZM518.4 48h19.2v240h-19.2ZM547.2 48h4.8v240h-4.8ZM561.6 48h4.8v240h-4.8ZM571.2 48h4.8v240h-4.8ZM585.6 48h19.2v240h-19.2ZM609.6 48h4.8v240h-4.8ZM624 48h4.8v240h-4.8ZM638.4 48h14.4v240h-14.4ZM657.6 48h9.6v240h-9.6ZM676.8 48h9.6v240h-9.6ZM700.8 48h14.4v240h-14.4ZM720 48h4.8v240h-4.8ZM729.6 48h9.6v240h-9.6ZM0 0h835.2v48h-835.2ZM0 288h835.2v48h-835.2ZM0 48h48v240h-48ZM787.2 48h48v240h-48Z"/>
-  <text x="417.6" y="369.6" text-anchor="middle" font-family="Helvetica, sans-serif" font-size="33.6">
+  <text x="417.6" y="369.6" text-anchor="middle" font-family="Arimo, Arial, sans-serif" font-size="33.6">
    This Text
   </text>
  </g>