deconflating intent and proposal
In this PR I try to de-conflate vf:Intent
(earliest phase of a flow) from vf:Proposal
. It will need more iterating over it but I think we need to take this first step already. #217 (closed) should yield initial definition of vf:Proposal
. Here I'll just add another commit which defines vf:Intent
as flow similar to how we define vf:Commitment
and vf:EconomicEvent
.