New features

Feature complete compared to Drupal 7 version.
Needs wider testing and review.

Adds a permission to enable same-day bookings

Added check to make sure that the bundle is set before parsing over it.
Added ability to hide and show field widget title and description.
Fix improper entity access check.

$ git log --oneline 8.x-4.0-beta3..8.x-4.0-rc1
753d8ba Issue #2919108: Using '--limit' with '--feedback' on import does not work by woutgg, heddn, deviantintegral: Using '--limit' with '--feedback' on import does not work