If we missed the tree connect we can't know for sure if we're
reading from a (DCERPC) PIPE or not. In this case probe the data
to see if it looks like DCERPC.

If the detection succeeds, use a special 'suricata::dcerpc' service
in the TX.

Simplify handling of DCERPC records that cross records

Update logging for the response only TXs.

Remove 'experimental' label for Rust, and enable it by default if
rustc and cargo (and libjansson) are available.

Add rustc and cargo versions to the build-info.

Don't allocate an output buffer for each call. These buffers
would have the exact same size every time.

Add simple helper funcs for option-less loggers

Add support for community flow id, meant to give a records a
predictable flow id that can be used to match records to
output of other tools.

Takes a 'seed' that needs to be same across sensors and tools
to make the id less predictable.