Add check-christmas.ps1 and check-new-year.ps1

Scripts/check-new-year.ps1

@@ -0,0 +1,25 @@
+<#
+.SYNOPSIS
+	Checks the time until New Year
+.DESCRIPTION
+	This script checks the time until New Year and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-new-year
+.NOTES
+	Author: Markus Fleschutz · License: CC0
+.LINK
+	https://github.com/fleschutz/PowerShell
+#>
+
+try {
+	$Now = [DateTime]::Now
+	$Diff = [Datetime]("12/31/" + $Now.Year) – $Now
+
+	$Reply = "$($Diff.Days) days until New Year."
+	"✔️ $Reply"
+	& "$PSScriptRoot/speak-english.ps1" "$Reply"
+	exit 0 # success
+} catch {
+	"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
+	exit 1
+}