[swarm_ctrl] Minor aesthetic changes to --log-stats output.

This now shows standard devations of amplitudes and phase instead
of just the raw values.
[swarm/core] The get_visibs member now reads directly from core.

Sometimes the get_10gbe_core_details functions crashes and since all
we need is the IP we can just read it directly.
[swarm/data] The data catcher loop now extracts FID from IP address.

This is easier and more efficient than using the get_member function.
[swarm] Migrated over to the newest 54% SWARM bitcode.

A change in register names was needed.