Introduce simple polling mechanism for communities

[gkapkowski]

To give project owners ability to ask simple multichoice questions:

Example:

Which feature to implement first:
- #123 Xyzine
- #345 Abcinu
- #756 Klmno

Proposed Claim structure:

{
  types: ['poll'],
  claim: {
    target: "Which feature to implement next?",
    options: [
      {text: "#123 Xyzine"},
      {text: "#345 Abcinu"},
      {text: "#756 Klmno"}
    ]
  }
}

Behavior could mimic twitter polls.

As for displaying answers we could provide couple of views depending on filters, eg:

• All votes
• Community votes
• Traders (>100 trades in last 7 days)
• etc.

[OrdonTeam]

Can be done with likes. It is future feature request.