Template modificaction replication

Every modification done on the Template is replicated on every host.

When modifiying the update interval of an item, it will affect all iherited items in the hosts, we can avoid this by specifiyin a user macro in the update interval, but it can't be done when enabling or disabling the item.

Perhaps we can specify an option if we want this the modification to be replicated in the hosts. There are some that will always be replicated, like the key or name of the item, but others, not always is a desired bejavor