[Titus] Pandas support

[frol]

I would like to suggest adding Pandas support so there would be no need in record-by-record data-copying.

[animator]

@frol you can easily convert pandas df to list of jsons:

import json
data = json.loads(df.to_json(orient = 'records'))
for datum in data:
    engine.action(datum)

You can check out the latest release at https://github.com/animator/titus2 and report any future issues.

Regards.