Institution needs to be able to be selected when editing a project's settings

[davidbairdala]

Currently the Epedition settings will just save edits into the featureOwner field of the project domain object. It should:

a) Allow someone to select an Institiution or type in a label in the same way the new expedition wizard works
a) i) If an institution is selected, perhaps we should clear the 'featuredOwner' field
a) ii) If a label is typed in that does not match an institution, we need to clear the Institution and save it in the featuredOwner

b) We need to make sure that where the featuredOwner field is being referenced that it checks if it should use the Institution name instead. Easiest way to do this is to maybe create a transient computed property on the Project domain object and perform the logic in there, and the find/replace all usages of featuredOwner with this need property (getSponsorName() ?)
https://github.com/AtlasOfLivingAustralia/volunteer-portal/issues/new#