Reliable Producer and Reliable Consumer

[Gsantomaggio]

Proposal: Introduce two new classes:

• Reliable Producer
• Reliable Consumer

We'd like to keep the current StreamSystem implementation as simple as possible.
Up the current Producer and Consumer classes create two new classes with a few responsibilities like:

• Auto-reconnect
• handle metadata
• message sent/received (producer)

That's would be the schema:

atm we have layer1/3 Reliable* will be layer4

The user will be free to choose the basic implementation of the "smart" implementation.
( per conversation with @kjnilsson )

Responsibilities:

• Reconnect the client when the connection is dropped
• Handle the meta-data
• Handle the messages confirmed and unconfirmed
• In case of metadata update try to reconnect if the stream exists else close the connection

[Gsantomaggio]

Related to #46 and #98

[lukebakken]

Fixed by #104 and #115 nice work @Gsantomaggio