Add several open-* scripts

Scripts/open-microsoft-paint.ps1

@@ -0,0 +1,20 @@
+<#
+.SYNOPSIS
+	Launches the Microsoft Paint app
+.DESCRIPTION
+	This script launches the Microsoft Paint application.
+.EXAMPLE
+	PS> ./open-microsoft-paint
+.NOTES
+	Author: Markus Fleschutz · License: CC0
+.LINK
+	https://github.com/fleschutz/PowerShell
+#>
+
+try {
+	start-process ms-paint:
+	exit 0 # success
+} catch {
+	"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
+	exit 1
+}