Bulk Context Consumption

In order to reduce code-bloat like:
```html
<DAO.Data>
<DAO.Entity>
<Member.Data>
<Member.Entity>
<Reputation.Data>
...
```

we can support something like:
```html
<Consume
 from={[DAO, Member, Reputation.Data]}
 render={(dao: DAOPair, member: MemberPair, reputation: ReputationData) => (
 <div>{dao.data.name}</div>
 )}
/>
