IYY-287: Install and enable Drupal Book module

[codechefmarc]

IYY-287: Install and enable Drupal Book module

Description of work

• Adds book and custom book block modules
• Adds initial configuration to: Enable book for Page content type, add navigation block to the page meta section, and configuration for block
• Fixes issue with entity_redirect module that conflicted with book module
• Note: This PR currently does not have styling for the book navigation, this will come in a subsequent update

Functional testing steps:

• Login to the site
• Add a Page to the site
• Title the page
• Verify that in the sidebar, there is a new section for "Book outline"

• In the Book outline, from the select list, choose "Create a new book"
• Publish the page
• In layout builder, optionally, add a block such as text
• Save the layout
• Add a new page
• Title it
• In Book outline, select the first book as the book this new page should be part of
• Publish the page
• In layout builder, optionally, add a block such as text
• Save the layout
• Create a third page
• Title it
• In Book outline, select the first book as the book, and select the second page created above as the parent item
• Publish the page
• In layout builder, optionally, add a block such as text
• Save the layout
• Verify that on pages that are in a book, there is a top-level book navigation for that book

• Verify that the navigation shows all of the levels of the current book
• Verify that at the bottom, there is a "Book traversal links" which offer dynamic "paging" to the previous / next pages as well as up to the parent level

• Go to Structure -> Books and verify that there are books listed here

• Click "edit order and titles" on a book and verify that you can drag and drop to reorder sections of the book

[github-actions]

Created multidev environment pr-834 for yalesites-platform.