Add in delete:entry command

[khaliqgant]

Adds in the delete:entry command by using the channel_entries api. Super admin status must be set and also the can_delete_all_entries must be set to yes as well

        ee()->session->userdata['group_id'] = '1';
        ee()->session->userdata['can_delete_all_entries'] = 'y';

The next step to this which I'll add in later is the ability to pass in multiple entries to delete.

[rsanchez]

This is great. I think we should get rid of the delete by title option and just leave it as entry_id or url_title.

[khaliqgant]

Cool, sounds good to me! I actually forget to mention the bug I noticed in testing that upon deleting, the confirmation that is successful does not fire https://github.com/khaliqgant/eecli/blob/develop/src/Command/DeleteEntryCommand.php#L74

Something I'll look into further.

[khaliqgant]

Ability to delete by title has been removed. Only able to delete by entry_id and url_titlle