Update module version to 1.1.0 and enhance Merge-DSCConfigurationData function to prevent modifications to sealed parameters

Private/Test-ConfigurationDataNodeSealed.ps1

@@ -0,0 +1,14 @@
+function Test-ConfigurationDataNodeSealed {
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory=$true)]
+        [System.Collections.IDictionary]
+        $Node
+    )
+
+    if(-not (Test-ConfigurationDataDictionaryKey -Dictionary $Node -Key "Sealed")){
+        return $false
+    }
+
+    return [System.Management.Automation.LanguagePrimitives]::ConvertTo($Node["Sealed"], [bool])
+}