Refactor ThreadLocal use to handle hotrod flags

OperationsFactory and MultimapOperationsFactory use ThreadLocal to share flags.
Instead store the flags on each instance of the RemoteMultiMap/RemoteCache and pass them when they invoke something. When a new flag is added or removed we would create a new instance. This seems much more intuitive to me and simpler.

Then the flags can be defaulted on the RemoteCache/RemoteMultiMap when it is retrieved from the manager as well.