feat: Turtle.get/set_PathClass ( Fixes #82 )

Author: StartAutomating

Types/Turtle/get_PathClass.ps1

@@ -0,0 +1,2 @@
+if ($this.'.PathClass') { return $this.'.PathClass'}
+return 'foreground-stroke'

Types/Turtle/get_PathElement.ps1

@@ -3,7 +3,9 @@
     if ($this.Stroke) { $this.Stroke } else { 'currentColor' }
 )' stroke-width='$(
     if ($this.StrokeWidth) { $this.StrokeWidth } else { '0.1%' }
-)' fill='$($this.Fill)' class='foreground-stroke'$(
+)' fill='$($this.Fill)' class='$(
+    $this.PathClass -join ' '
+)' $(
     foreach ($pathAttributeName in $this.PathAttribute.Keys) {
         " $pathAttributeName='$($this.PathAttribute[$pathAttributeName])'"
     }

Types/Turtle/set_PathClass.ps1

@@ -0,0 +1,13 @@
+<#
+.SYNOPSIS
+    Sets the turtle path class
+.DESCRIPTION
+    Sets the css classes that apply to the turtle path.
+
+    This property will rarely be set directly, but can be handy for integrating turtle graphics into custom pages.
+#>
+param(
+$PathClass
+)
+
+$this |  Add-Member -MemberType NoteProperty -Force -Name '.PathClass' -Value @($PathClass)