New-PipeScript: Ensuring [ScriptBlock] inputs only contain parameters (use case of #125)

Author: James Brundage

New-PipeScript.ps1.ps1

@@ -17,7 +17,8 @@ function New-PipeScript
     # * As an  ```[Object[]]```.
     # * As a ```[ScriptBlock]```
     [Parameter(ValueFromPipelineByPropertyName)]
-    [ValidateTypes(TypeName={[Collections.IDictionary], [string],[Object[]], [Scriptblock]})]    
+    [ValidateScriptBlock(ParameterOnly)]
+    [ValidateTypes(TypeName={[Collections.IDictionary], [string],[Object[]], [Scriptblock]})]
     $Parameter,
 
     # The dynamic parameter block.