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/pzn.svg

@@ -5,7 +5,7 @@
  <g id="barcode" fill="#000000">
   <rect x="0" y="0" width="682" height="238" fill="#FFFFFF"/>
   <path d="M0 0h4.8v192h-4.8ZM14.4 0h4.8v192h-4.8ZM24 0h9.6v192h-9.6ZM38.4 0h9.6v192h-9.6ZM52.8 0h4.8v192h-4.8ZM62.4 0h4.8v192h-4.8ZM76.8 0h4.8v192h-4.8ZM86.4 0h4.8v192h-4.8ZM96 0h9.6v192h-9.6ZM110.4 0h9.6v192h-9.6ZM124.8 0h4.8v192h-4.8ZM134.4 0h9.6v192h-9.6ZM153.6 0h4.8v192h-4.8ZM163.2 0h4.8v192h-4.8ZM172.8 0h9.6v192h-9.6ZM187.2 0h4.8v192h-4.8ZM196.8 0h4.8v192h-4.8ZM211.2 0h4.8v192h-4.8ZM220.8 0h9.6v192h-9.6ZM235.2 0h9.6v192h-9.6ZM249.6 0h9.6v192h-9.6ZM264 0h4.8v192h-4.8ZM278.4 0h9.6v192h-9.6ZM292.8 0h4.8v192h-4.8ZM302.4 0h4.8v192h-4.8ZM312 0h9.6v192h-9.6ZM326.4 0h4.8v192h-4.8ZM340.8 0h4.8v192h-4.8ZM350.4 0h9.6v192h-9.6ZM364.8 0h4.8v192h-4.8ZM374.4 0h4.8v192h-4.8ZM384 0h4.8v192h-4.8ZM398.4 0h9.6v192h-9.6ZM412.8 0h9.6v192h-9.6ZM427.2 0h4.8v192h-4.8ZM436.8 0h9.6v192h-9.6ZM451.2 0h4.8v192h-4.8ZM465.6 0h4.8v192h-4.8ZM475.2 0h9.6v192h-9.6ZM489.6 0h4.8v192h-4.8ZM499.2 0h4.8v192h-4.8ZM508.8 0h9.6v192h-9.6ZM528 0h4.8v192h-4.8ZM537.6 0h9.6v192h-9.6ZM552 0h4.8v192h-4.8ZM561.6 0h4.8v192h-4.8ZM571.2 0h9.6v192h-9.6ZM590.4 0h4.8v192h-4.8ZM600 0h9.6v192h-9.6ZM614.4 0h4.8v192h-4.8ZM624 0h4.8v192h-4.8ZM638.4 0h4.8v192h-4.8ZM648 0h9.6v192h-9.6ZM662.4 0h9.6v192h-9.6ZM676.8 0h4.8v192h-4.8Z"/>
-  <text x="340.8" y="225.6" text-anchor="middle" font-family="Helvetica, sans-serif" font-size="33.6">
+  <text x="340.8" y="225.6" text-anchor="middle" font-family="Arimo, Arial, sans-serif" font-size="33.6">
    PZN - 27580899
   </text>
  </g>