added the ability for FSFW to timeout flows

FSFW now has the capability of timing out flows. It can implement both
idle and hard timeouts.  The only issue is that it operates on the
interval for stats collection, and requires that the device actually
does flow stats.
some cleaning and unit tests for the flow timeout

added some unit tests for Flow Timeout within the proxy.
additional unit tests cleaning up logging statements

adding some more unit tests and cleaning up logging statements
Merge branch 'ISSUE=7513-idle-and-hard-timeouts-in-FSFW' into 1.0.3-dev