List the files and subdirectories of the ResourceURI .
This method will return a list of resources from the specified URI. The results will be returned through one or more DirList events (one for each matching resource).
Depth is used to determine which resources or properties are retrieved from the server. A depth of ResourceOnly will return only the resource associated with ResourceURI, or its properties. A depth of Infinity will return all resources contained within hierarchy, or their collective properties.
Note: Some servers (such as IIS 7.5) may not support a depth of Infinity by default and may return a HTTP 403 Forbidden response.