[Windows] Cleanup various scripts (#8942)

* Use Resolve-GithubReleaseAssetUrl more widely

* Add the Get-ChecksumFromUrl function

* Sort exported functions and add docs

* Remove alias and fix typo

* Fix kind checksum url and syntax

* Fix checksums url for gh cli and msys2

* [Windows] Cleanup various scripts

* Add spaces after type specifications

* Rename the Take-Part function

images/windows/scripts/build/Install-Zstd.ps1

@@ -3,17 +3,18 @@
 ##  Desc:  Install zstd
 ################################################################################
 
-$url = "https://api.github.com/repos/facebook/zstd/releases/latest"
-# Explicitly set type to string since match returns array by default
-[System.String] $zstdLatest = (Invoke-RestMethod -Uri $url).assets.browser_download_url -match "zstd-.+-win64.zip$"
-$zstdArchivePath = Invoke-DownloadWithRetry $zstdLatest
+$downloadUrl = Resolve-GithubReleaseAssetUrl `
+    -Repo "facebook/zstd" `
+    -Version "latest" `
+    -UrlMatchPattern "zstd-*-win64.zip"
+$zstdArchivePath = Invoke-DownloadWithRetry $downloadUrl
+$zstdName = [IO.Path]::GetFileNameWithoutExtension($zstdArchivePath)
 
 $toolPath = "C:\tools"
 $zstdPath = Join-Path $toolPath zstd
-$zstdParentName = [IO.Path]::GetFileNameWithoutExtension($zstdLatest)
 $filesInArchive = 7z l $zstdArchivePath | Out-String
 
-if ($filesInArchive.Contains($zstdParentName)) {
+if ($filesInArchive.Contains($zstdName)) {
     Expand-7ZipArchive -Path $zstdArchivePath -DestinationPath $toolPath
     Invoke-ScriptBlockWithRetry -Command {
         Move-Item -Path "${zstdPath}*" -Destination $zstdPath -ErrorAction Stop