Add support for different spinners

resources/scripts/Generate-Spinners.ps1

@@ -0,0 +1,22 @@
+##########################################################
+# Script that generates progress spinners.
+##########################################################
+
+$Output = Join-Path $PSScriptRoot "Temp"
+$Source = Join-Path $PSScriptRoot "/../../src/Spectre.Console"
+
+if(!(Test-Path $Output -PathType Container)) {
+    New-Item -ItemType Directory -Path $Output | Out-Null
+}
+
+# Generate the files
+Push-Location Generator
+&dotnet run -- spinners "$Output" --input $Output
+if(!$?) {
+    Pop-Location
+    Throw "An error occured when generating code."
+}
+Pop-Location
+
+# Copy the files to the correct location
+Copy-Item  (Join-Path "$Output" "ProgressSpinner.Generated.cs") -Destination "$Source/Progress/ProgressSpinner.Generated.cs"