Prototype of recording streaming requests

[kpanic]

Hi @parroty regarding #75
I have sketched this bare bone prototype.
It recorded my responses when using a streamed request, however I would like to hear from you before giving to it another go.

Thanks a lot!

[coveralls]

Coverage decreased (-0.6%) to 93.088% when pulling 3c8ce0f on kpanic:stream-reqs-prototype into 2663050 on parroty:master.

[parroty]

Thanks, I wasn't thinking about this approach.
Is it possible for you to write a test for this scenario (or post your example?)

[kpanic]

Yes sure, I will try this weekend and try to solve this NOTE https://github.com/parroty/exvcr/pull/85/files#diff-cb27aa72b4049243f7b92ffeaa64c822R67 that I put