Solved issue with saving a new fragment on a newly created answer

Fused all the code about linked fragment list into one place

Moved data_reformater in helper & changed schema params generation

Implemented sub fragment form

Implemented simple new/edit methods for standalone fragments

Uncommented verify_authorized in StructuredAnswer controller

User can now choose & edit contact & principal investigator from the created person fragment list

Added StructuredAnswer policy & authorization

Should be able to create a new Partner or Funding

Deleting a Partner or Funding should refresh the list properly

Funding & Partners should be editable

Added Funding form

First version of the Partners creation & edit form