[Microwin] dedicated Function folder (#2888)

* move Microwin related stuff to own Folder under "Functions"

* update runspace function gathering logic

* update Recall logic (from main repo)

* change to easier naming scheme

- rename files
- rename function names

* remove unneeded comment (after @CodingWonders's suggestion)

functions/microwin/Microwin-GetOscdimg.ps1

@@ -0,0 +1,29 @@
+function Microwin-GetOscdimg {
+    <#
+        .DESCRIPTION
+        This function will download oscdimg file from github Release folders and put it into env:temp folder
+
+        .EXAMPLE
+        Microwin-GetOscdimg
+    #>
+
+    param(
+        [Parameter(Mandatory, position=0)]
+        [string]$oscdimgPath
+    )
+
+    $oscdimgPath = "$env:TEMP\oscdimg.exe"
+    $downloadUrl = "https://github.com/ChrisTitusTech/winutil/raw/main/releases/oscdimg.exe"
+    Invoke-RestMethod -Uri $downloadUrl -OutFile $oscdimgPath
+    $hashResult = Get-FileHash -Path $oscdimgPath -Algorithm SHA256
+    $sha256Hash = $hashResult.Hash
+
+    Write-Host "[INFO] oscdimg.exe SHA-256 Hash: $sha256Hash"
+
+    $expectedHash = "AB9E161049D293B544961BFDF2D61244ADE79376D6423DF4F60BF9B147D3C78D"  # Replace with the actual expected hash
+    if ($sha256Hash -eq $expectedHash) {
+        Write-Host "Hashes match. File is verified."
+    } else {
+        Write-Host "Hashes do not match. File may be corrupted or tampered with."
+    }
+}