Add logging to nuget.versioning loading

Author: adityapatwardhan

src/dsc/psresourceget.ps1

@@ -233,8 +233,19 @@ function SatisfiesVersion {
         ForEach-Object { $_.Assemblies } |
         Where-Object { $_.GetName().Name -eq 'NuGet.Versioning' }
 
+    Write-Verbose -Verbose "checking if NuGet.Versioning is already loaded: $loaded"
+
     if (-not $loaded) {
+        $nugetVersioningPath = Join-Path -Path $PSScriptRoot -ChildPath 'dependencies/NuGet.Versioning.dll'
+
+        if (-not (Test-Path -Path $nugetVersioningPath)) {
+            Write-Trace -message "NuGet.Versioning.dll not found at expected path: $nugetVersioningPath" -level error
+            return $false
+        }
+
+        Write-Verbose -Verbose "Loading NuGet.Versioning assembly from $PSScriptRoot/dependencies/NuGet.Versioning.dll"
         Add-Type -Path "$PSScriptRoot/dependencies/NuGet.Versioning.dll"
+
     }
 
     try {