Update turbiniactl output to handle high task counts

[aarontp]

Because of the way the partition and docker explorer enumeration works we end up with a lot more Tasks being run now. A couple ideas for things we can update so that the output is not too cluttered:

• Aggregate Tasks with similar status output in default status view
• Update the logging output to remove or aggregate task names when waiting for the Turbinia run to complete

[aarontp]

The second part of this has been completed in #839, and the first step ("Aggregate Tasks with similar status output in default status view") still remains. This might be non-trivial to do in a clean way, so we might want to move to some kind of templating instead of trying to hardcode a change like that in the client.

[aarontp]

These are now aggregated in the status view (when full details are not being shown).