Select Impact Evaluator contract to transact with

As a submitter of a project, I can select from a list of Impact Evaluator contracts to submit my

[ ] Add a new contract to the IE terminal
[x] Drop-down list of impact evaluator contracts
[ ] Impact Evaluator shows meta-data (human-readable title, balance, previous interactions)
[x] Click selection updates the contract where transactions are submitted to
[x] Indicator of which contract is selected (name, contractAddress) in the nav bar

MF416 / QuantIE