Implement find title functionality for find-package-title plugin

As an electronic resource librarian while creating/editing/viewing an Agreement
I want to be able to easily attach a title to an Agreement line
So that I do not have to go to eholdings app to attach the title to the Agreement and can stay in the context of the Agreement that I have accessed.

Mockup

https://drive.google.com/file/d/1W9a54d17quD9Y8fxoUldoTgo7FfP1o39/view?usp=sharing

Packages and Titles toggle Requirement

• On the find-package-title plugin's Search & Filter pane, display Packages and Titles toggle
• Package toggle will display the Packages search box
• Titles toggle will display the Titles search box, Titles search dropdown, and Title filters
• Assume no change to existing Titles search box, Titles search dropdown, and Title filters behavior

Titles filters

• This plugin should display all the same filters as on the Titles search page

Titles Results List

• Columns: Status, Title, Package, Publisher, Type
• Sortable column: Title only I do not think the API can support anything else.
• Each row represents a title in a package
• Checkbox to the left of each result allows a user to select multiple titles to add to an agreement thus allowing for multiple agreement lines to be created at the same time.
• A search that renders no results should display the same message as what displays on the Titles results on eholdings app

Acceptance criteria

Given I am on an Agreement record
When I click the action that displays the eholdings plug-in
Then display two toggles to allow me to search by packages or search by titles

Given I am on the eholdings plug-in modal
When I conduct a title search for Jane Eyre
Then each result row should represent Jane Eyre in a Package

Given I am on the eholdings plug-in modal
When I select a title
Then an agreement line should be created

Given I am on the eholdings plug-in modal
When I select multiple titles
Then an agreement line should be created for each title selected

Given I am on the eholdings plug-in modal
When I view the Search and Filter pane section
Then I should see all the title search and filter capabilities that I would see if I was searching titles in the eholdings app