Require 12 home BPs before any other Monitoring recommendation is given

[aeyates]

Keep encouraging participants to take BPs until they have at least 12 home measurements. Only after they have 12 will they get recommendations about whether they have achieved their goal or not.

[aeyates]

I have implemented this with the following rules:

• 12 BPs required to get any other Monitoring recommendation ("You are at goal!") or any Pharma recommendation ("You are not at goal despite current efforts..."
• Lifestyle recommendations appear if one of the following is true:
  1. We're still collecting a set of BPs (combination of office/home)
  2. We have a set and they are still above goal
  3. They are actively working toward a lifestyle goal

Screenshot below. It looks a little strange to see the message "You reached your goal!" in the graph, but otherwise this solution works.