Enable to delete file even if drupal is using it. (NOT IMPLEMENTED YET)

Hm, seems that this got lost in the later releases v2 and v3, so this actually should be re-opened. And re-implemented? Or some documentary or statment here should explain where to find this option or why it has not been implemented (sometimes such things happen for good reasons but should be documented somehwere).

Apart from #15, another thing I worry about is:

+    $conf['operation_settings']['ignore_usage'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Ignore the file usage when deleting it.'),
+      '#default_value' => $imce_profile->getConf('ignore_usage'),
+      '#description' => $this->t('If it is checked it will be able to delete a file even if it is being used somewhere else. Pay attation if you really wanna to enable it.'),
+      '#parents' => ['conf', 'ignore_usage'],
+    ];

Is just an attempt to override the default config which disallows ignoring usage. But: I am not sure if this is enough to solve that underlying problem and it can possibly break the site if the image has other relations on the site which are not known yet. I wonder if this would cause things like, for example, keeping orphaned revision data of this image in the database, which could become a problem later. I wonder if this is enough to just note "pay attention" or if it rather should be seomthing more ringing like: "Be warned! This setting should only be used temporarely for chirurgical purposes, where an image won't allow to be deleted, but you are sure it has definitely no usage or connection no more in the system. Make sure revisions are turned of for this image is it still exist in the content file or media overviews. Standard setting should be OFF (recommended)."