Only .* files are added to zip on Windows

[KonradLinkowski]

When used on windows with path ./ only files starting with . are added to the zip file instead of the whole folder. Probably because of the command used for windows: powershell.exe -nologo -noprofile -command "& { Add-Type -A 'System.IO.Compression.FileSystem'; [IO.Compression.ZipFile]::CreateFromDirectory('${inPath}', '${outPath}'); }"