Add integration with policy reasoner

[Lut99]

The work part of the policy reasoner effort is now at the point where integration with Brane may be possible. This issue exists to track the effort.

Tasks

• [x] #61
• [x] #67
• [x] #62
• [x] #63
• [x] #68
• [x] #64
• [x] #69
• [ ] #65
• [ ] #66
• [x] #70
• [ ] #71