Create/Edit Agreement: Add a setting that hides Usage data accordion

Purpose:
Allow institutions not using the eUsage module to not display the Usage data accordion in the Agreements edit screen.

User story statement(s):

As a library that in not using the eUsage module
I do not want to see the Usage data accordion on the Agreement record
Because I find it confusing and do not need to see it

As an ERM Administrator
I want to be able to control whether specific accordions appear in the Agreement edit screen
So that users of the system do not see irrelevant options on the screen

Scenarios:

1. Scenario:
   • Given Settings -> Agreements -> Display Settings
   • When I view the display settings
   • Then I see options to Hide accordions in the Agreements edit view
2. Scenario:
   • Given Settings -> Agreements -> Display Settings -> Hide accordions in Agreements edit view"
   • When I view the options
   • Then I see a check box (not selected by default) for "Usage data" (further options may be added here in the future)
   • 
3. Scenario:
   • Given Settings -> Agreements -> Display Settings -> Hide accordions in Agreements edit view
   • When I check or uncheck the "Usage data" option
   • Then the 'Save' button becomes active
4. Scenario:
   • Given Settings -> Agreements -> Display Settings with active Save button
   • When I click "Save"
   • Then options set in "Hide accordions in Agreements edit view" are saved
5. Scenario:
   • Given I have set the "Usage data" display option to 'true' (selected)
   • When I create or edit an Agreement
   • Then the Usage data accordion is not displayed
6. Scenario:
   • Given I have set the "Usage data" display option to 'false' (not selected, default)
   • When I create or edit an Agreement
   • Then the Usage data accordion is displayed