Add log_handlers syncing to saltutil module
Add log_handlers syncing to saltutil module

Right now, it doesn't look like there's any non-manual way to set up external logging handlers on minions.  This allows syncing log_handlers to minions the same way as any other extension module and includes any external logging handlers in `saltutil.sync_all`

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt