xWebConfigProperty: Location is not supported

[rcarpenter79]

Details of the scenario you tried and the problem that is occurring

I want to add configurations in a parent web.config file using the location parameter to target a child application.
The Location parameter isn't available on xWebConfigProperty.

Suggested solution to the issue

A parameter added to the resource to specify the Location value.
A change to add Location should also be applied to xWebConfigPropertyCollection.

Version of the DSC module that was used

'3.0.0.0'

[changbowen]

Location is required if you are modifying locked sections as described here.

[davetapley]

I think this is a dupe of #401 and fixed by currently un-merged #400