1. install voting aggregator
2. create ADD_POWER_SOURCE_ROLE on votingAggregator grant sabVoting managed by sabVoting
3. create MANAGE_POWER_SOURCE_ROLE on votingAggregator grant sabVoting managed by sabVoting
4. create MANAGE_POWER_SOURCE_ROLE on votingAggregator grant sabVoting managed by sabVoting
5. call addPowerSource(communityToken, 1, 1)