<Boolean> vote(<Object> votesPerIndeciesHash)
Votes for specified options' indices (starting with 0) and return true when all cases are satisfied:
  1. 1.
    count of voted options satisfies min/max options per vote conditions;
  2. 2.
    total votes not more than maximum number of votes a user can cast.

Example{0: 1, 1: 4, 2: 2});