Add a client for python

[mxdev88]

I would like to access a scrapyd instance from within python code directly.

I would propose something like below:

from scrapyd_client import ScrapydClient

client = ScrapydClient(url='http://localhost:6800')

client.projects()

The API would expose the commands already implemented within scrapyd-client. scrapyd-client already has most of the code necessary to accomplish this with little effort. most of it would be wrapper around lib.

Does it make sense? If so, happy to contribute a PR.

[jpmckinney]

Makes sense!