Add functions for configuration data handling and extend template merging capabilities

Private/Resolve-ConfigurationDataTemplatePath.ps1

@@ -0,0 +1,24 @@
+function Resolve-ConfigurationDataTemplatePath {
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory=$true)]
+        [string]
+        $Path,
+
+        [Parameter(Mandatory=$false)]
+        [string]
+        $BasePath = (Get-Location).Path
+    )
+
+    $CandidatePath = $Path
+    if(-not [System.IO.Path]::IsPathRooted($CandidatePath)){
+        $CandidatePath = Join-Path -Path $BasePath -ChildPath $CandidatePath
+    }
+
+    $ResolvedPath = Resolve-Path -Path $CandidatePath -ErrorAction SilentlyContinue
+    if($null -eq $ResolvedPath){
+        throw "Configuration data template [$Path] was not found. Base path [$BasePath]."
+    }
+
+    return $ResolvedPath.ProviderPath
+}