Make it easy to view and share a list of MPs who've rebelled on a vote

[RichardTaylor]

Following the fantastic work at #746 I thought I'd make this into a separate issue.

While the new vote presentation does make it much easier to see and identify MPs who've voted against the majority of their own party it doesn't provide a list of them or make it possible to link to such a list.

Sometimes a newsworthy aspect of a vote's result is which MPs voted against their parties eg.

Brexit vote: The 11 Tory rebel MPs who defeated the Government, Independent website, 13 December 2017. (Vote on TheyWorkForYou)

Offering the ability to order the vote lists by party would be one way of making it easy for people to extract lists of rebels.