Add delete item by title function

[edif2008]

This PR adds the possibility to delete an item by providing the item title and the vault name/UUID.

[tylerasai]

Deleting item by title is interesting, would there be a case where title is not unique?

[edif2008]

Yes, it can happen.
When there are at least two items with the same title, function GetItemByTitle will fail, since it expects exactly one item with the provided title. Therefore, we can't get to a case of deleting multiple items that have the same title.

We can add another function, DeleteItemsByTitle where this one-match check is ignored. This will allow deleting multiple items that have the same title. I can do that in another PR if it makes sense.

[tylerasai]

Yes, it can happen. When there are at least two items with the same title, function GetItemByTitle will fail, since it expects exactly one item with the provided title. Therefore, we can't get to a case of deleting multiple items that have the same title.

We can add another function, DeleteItemsByTitle where this one-match check is ignored. This will allow deleting multiple items that have the same title. I can do that in another PR if it makes sense.

Cool, I can confirm that when multiple titles found it throws an error from the GetItemByTitle function.