Fix handling of numerical configuration properties across PS5 and PS7 (…

…#262)

`ConvertFrom-Json` defaults numbers to different types depending on the PowerShell version.

PS5 defaults numbers to `[Int32]` while PS7 defaults numbers to `[Int64]`, but both versions default to `[Int32]` in a `[PSCustomObject]`.

Due to this, if you had a number config value saved, on PS7 it would be ignored and the default value would be used because the expected and actual types wouldn't match.

I've updated `Resolve-PropertyValue` to have equivalence logic for number types to avoid this issue.

GitHubConfiguration.ps1

@@ -466,16 +466,18 @@ function Resolve-PropertyValue
     if ($Type -eq 'Boolean') { $typeType = [Boolean] }
     if ($Type -eq 'Int32') { $typeType = [Int32] }
     if ($Type -eq 'Int64') { $typeType = [Int64] }
+    $numberEquivalents = @('Int32', 'Int64', 'long', 'int')
 
     if (Test-PropertyExists -InputObject $InputObject -Name $Name)
     {
-        if ($InputObject.$Name -is $typeType)
+        if (($InputObject.$Name -is $typeType) -or
+            (($Type -in $numberEquivalents) -and ($InputObject.$Name.GetType().Name -in $numberEquivalents)))
         {
             return $InputObject.$Name
         }
         else
         {
-            $message = "The locally cached $Name configuration was not of type $Type.  Reverting to default value."
+            $message = "The locally cached $Name configuration was not of type $Type (it was $($InputObject.$Name.GetType())).  Reverting to default value."
             Write-Log -Message $message -Level Warning
             return $DefaultValue
         }