Display Fixed Due Date Schedules in Loan Policies

Purpose: Now that we (almost) have Fixed due date schedules in place, we want to make sure they are wired up to Loan policies so they display in the Fixed due date schedule menus that (conditionally) display there.

Scenarios:

1. Scenario
   • Given the Loans section of the Loan policy form
   • When "Fixed due date schedule" is displayed
   • Then the select menu should contain all fixed due date schedules defined under Settings > Circulation > Fixed due date schedules in alphabetical order (case insensitive)
2. Scenario
   • Given the Renewals section of the Loan policy form
   • When "Alternate fixed due date schedule for renewals" is displayed
   • Then the select menu should contain all fixed due date schedules defined under Settings > Circulation > Fixed due date schedules in alphabetical order (case insensitive)
3. Scenario
   • Given the Loans section of the Loan policy form
   • When "Fixed due date schedule (due date limit)" is displayed
   • Then the select menu should contain all fixed due date schedules defined under Settings > Circulation > Fixed due date schedules in alphabetical order (case insensitive)
4. Scenario
   • Given the Renewals section of the Loan policy form
   • When "Alternate fixed due date schedule (due date limit) for renewals" is displayed
   • Then the select menu should contain all fixed due date schedules defined under Settings > Circulation > Fixed due date schedules in alphabetical order (case insensitive)

Full list of loan policy metadata including display conditions: https://docs.google.com/spreadsheets/d/1f8kX2mGub3ARPml4x3Ejaq1UsBeGP3xxLWbVk_DTgqg/edit#gid=0