Support nested array wildcard deletion

[joaosa]

I added support for deletes that affect all entries within an array.
This way, delete operations of the form outer.*.bar will work.

Hope this makes sense! Let me know if I missed anything :)

[Jeffail]

Hey @joaosa, this is cool but we ought to handle wildcards at multiple levels in the hierarchy. I've created a branch with test cases that we need to support here: 9b07226

This has also surfaced what I'd consider to be a bug with the existing Delete function in that it allows you to specify wildcards even though it doesn't support it, so this definitely needs implementing.

We'll likely need to implement a custom walk function for the path segments rather than rely on Search since the way that it expands wildcard arrays is incompatible with implementing deletes. Let me know if you have time to try that out, otherwise I can look into it.

[joaosa]

Hey @Jeffail, that makes a lot of sense and the test cases are surely helpful!

I don't think I'll have the time to help right away. It would be great if you could look into it :)

[jlourenc]

Hey @joaosa and @Jeffail , I had a stab at implementing this functionality in #113 . Have a look, feedback very welcome! Thanks

[joaosa]

Closing this in favor of #113 :)