SwisClient needs BulkDelete support

[tdanner]

The SWIS REST API supports deleting many objects in a single batch - see https://github.com/solarwinds/OrionSDK/wiki/REST#bulkdelete-request. But the Python client lacks a wrapper for this feature. The implementation is pretty simple:

def bulkdelete(self, uris):
	self._req("POST", "BulkDelete", {'uris': uris})

Noticed while investigating https://thwack.solarwinds.com/message/428474.

[superadm1n]

I think this is a good idea. I have implemented it on my fork and tested it and works as expected. I added a sample script and issued a pull request.

[danjagnow]

Resolved by #45