Feature: Only 1 print proc (SVG)

[aruZeta]

For better readability and ease of feature adding (like I'm planning to add a "margin" field to separate the modules at will, and not the default 0.1 for rounded modules), I think it will be better to just have 1 single printSvg procedure.

Issues:

The proc doesn't know if the user passed a 0 explicitly or not to moRad or alRad, but this should not be an issue at all unless the user wants to have an SVG with individual modules and alignment patterns (I mean them being drawed as <rec> instead of a <path>).

Solution 1: Use Option, problem: I don't like how the user will need to use some() to pass values.

Solution 2 (imo the best): If the user really wants to do what I said before, we could just add a useRect bool field, if true the proc will not care if the specified radius is 0 or whatever.

Comment which solution you like, or add a new one.

Edit: note how this also fixes an issue where you can't set moRad without setting alRad.

[aruZeta]

How it would look with Solution 2:

@@ -99,20 +99,21 @@ func printSvg*(
   alRad: Percentage = 0,
   moRad: Percentage = 0,
   class: string = "qrCode",
-  id: string = ""
+  id: string = "",
+  forceUseRect: bool = false
 ): string =
   result = fmt(svgHeader)
-  if moRad:
+  if moRad or forceUseRect:
     let moRadPx: float32 = 0.4 * moRad / 100
     drawRegionWithoutAlPatterns moduleRect
   else:
     result.add fmt(modulePathStart)
-    if alRad:
+    if alRad or forceUseRect:
       drawRegionWithoutAlPatterns modulePath
     else:
       drawRegion 0'u8, size, 0'u8, size, modulePath
     result.add fmt(modulePathEnd)
-  if alRad:
+  if alRad or forceUseRect:
     let alRadPx: float32 = 3.5 * alRad / 100
     drawRoundedAlignmentPatterns
   result.add svgEnd

With this

let qr = newQR("https://github.com/aruZeta/QRgen")
writeFile(
  "build" / "testingSvg.svg",
  qr.printSvg("#1d2021", "#98971a", forceUseRect = true)
)

Outputs the same as pre- 530e7aa

let qr = newQR("https://github.com/aruZeta/QRgen")
writeFile(
  "build" / "testingSvg.svg",
  qr.printSvg("#1d2021", "#98971a", 0, 0)
)

[aruZeta]

I will go with Solution 2