Zoom Polls

[IanRFerguson]

This PR adds the following functions to the Zoom connector:

• get_meeting_poll_metadata - Returns metadata for a specific poll from a given meeting
• get_meeting_all_polls_metadata - Returns metadata for all polls from a given meeting
• get_past_meeting_poll_metadata - Returns metadata for a poll from a past meeting
• get_webinar_poll_metadata - Returns metadata for a specific poll from a given webinar
• get_webinar_all_polls_metadata - Returns metadata for all polls from a given webinar
• get_past_webinar_poll_metadata - Returns metadata for a poll from a past webinar
• get_meeting_poll_results - Returns poll results from a past meeting
• get_webinar_poll_results - Returns poll results from a webinar meeting

Meeting API Reference Webinar API Reference

I'd like to request that @Jason94 / Indivisible test drive these functions before merging, as I've had a hard time finding polls in past TMC Zoom meetings

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[IanRFerguson]

I can only speak for myself, but it makes plenty of sense to make this connector as usable out-of-the-box as possible. I can't foresee any situation where community members would prefer the nested dictionaries rather than the unpacked values ... if y'all see it differently we can make the __handle_nested_json helper optional via keyword argument