Revisions are not supported on JSON API

Problem/Motivation

When updating a FarmOs entity using JSON API, it never creates a revision. We need those revisions to match the rest of the application.
See this JSON API issue: https://github.com/json-api/json-api/pull/824

Steps to reproduce

PATCH an entity or POST a relationship change through JSON API, it should create a new revision but it doesn't.

Proposed resolution

Force new revisions if the entity type supports it and the bundle have them enabled.

Preliminary code for the assets:

function farm_ui_location_asset_presave(EntityInterface $entity) {
  // Force create new revision as json api doesn't do that by default.
  // @see https://www.drupal.org/project/drupal/issues/2993557
  // @see https://www.drupal.org/project/drupal/issues/2795279
  // @see https://github.com/json-api/json-api/pull/824
  $bundle = AssetType::load($entity->bundle());
  if ($bundle->shouldCreateNewRevision() && $entity->getEntityType()->isRevisionable()) {
    /** @var  \Drupal\Core\Entity\RevisionLogInterface $entity */
    $entity->setNewRevision(TRUE);
    $entity->setRevisionCreationTime(\Drupal::time()->getRequestTime());
  }
}

Remaining tasks

Hide the "new revision" checkbox from the farm entity forms.