Add cache clearing option for the JumpMenu

[litzinger]

The clear_caching function lumps the Jump Menu clearing in with the all option. For backwards compatibly, if an add-on needs to clear the Jump Menu cache, it has to call ee()->functions->clear_caching('all');, which may nuke too much of the cache. To make it compatible with EE 5 and 6, and give add-ons the option of clearing just the Jump Menu cache, what if the following change is made?

public function clear_caching($which, $sub_dir = '')
{
    $options = array('page', 'db', 'tag', 'sql');

    if (in_array($which, $options))
    {
        ee()->cache->delete('/'.$which.'_cache/');
    }
    elseif ($which === 'jumpmenu')
    {
        ee('CP/JumpMenu')->clearAllCaches();
    }
    elseif ($which === 'all')
    {
        foreach ($options as $option)
        {
            ee()->cache->delete('/'.$option.'_cache/');
        }
        ee('CP/JumpMenu')->clearAllCaches();
    }
}

This would make it so an add-on could call ee()->functions->clear_caching('jumpmenu'); and in EE 5, nothing happens, but in EE 6, just the jumpmenu cache folder is deleted.

[intoeetive]

@litzinger we'll add this for 6.0.1

[ops-andy]

fixed in 6.0.1