Implement and access check for show video path

Attaching a patch with an access callback (depends on the patch from the related issue: https://www.drupal.org/files/issues/2022-05-12/video_embed_field-remove-... → ).

Thanks, looks good to me, just a tiny thing for the comments:

+++ b/video_embed_field.module
@@ -622,6 +623,21 @@ function _video_embed_code_get_settings_str($settings = array()) {
+ * Access checker for video load URL.

There should be an empty line after the function short description.

After that I think we can set this to RTBC!

Thanks for checking @klausi. Attaching updated patch.

Thanks a lot, RTBC confirmed.