Feature Request: make Document class subscriptable

[omarghetti]

Hello everyone!
it is possibile to make the Document class from the redisearch module a subscriptable class? it would make it easier to access fields if someone needs to remap the search results to other structures in their code

example:
for doc in result.docs:
search_output.matches.append(Document(document_id=doc.id, value=doc[filter_name]))

The Document class that I'm using here is another class that i will extend with other values

right now, this code returns an error that tells:

TypeError: 'Document' object is not subscriptable

Thank you

[dvora-h]

fixed in #2615