[XB] Custom Field Display Options: Lists, Labels & Layouts 2.2.2

Added support for displaying the selected drop-down choice as a label or a single list item.
Added support for displaying the selected radio button choice as a label or a single list item.

Added a Labels display mode that wrap automatically on smaller screens.
Added per-field Default, Inline (title: value), and Stacked (title above the value) layouts, independent of list formatting.

• Added support for XenForo Resource Manager custom fields (resource and review fields).
• Added support for [XB] Lessons custom fields (classroom, lesson, and rating fields).
• Added support for [XB] Quizzes custom fields (quiz fields).
• Added support for [XB] Toplists custom fields (top fields).
• Added support for XenAddons Article Management System custom fields (article and review fields).
• Added support for XenAddons Classified Ads System custom fields (ad fields).
• Added support for XenAddons Item Management System custom fields (item, review, and update fields).
• Added support for XenAddons Link Directory custom fields (item and review fields).
• Added support for XenAddons Review Management System custom fields (item and review fields).
• Added support for XenAddons Showcase custom fields (item, review, and update fields).
• Added support for XenAddons User Blogs System custom fields (blog entry and review fields).
• Added a "Default" option for the list style.
• Fixed empty lists being displayed for fields without a value.
• Fixed the list class accepting unsupported characters and values that are too long.
• Fixed "Display as list" being saved as disabled when no list type was selected.
• Fixed a PHP warning when displaying custom fields that do not support list display.
• Fixed list formatting not returning after the add-on is re-enabled.