Progress bar in CLI output

[davidsteinsland]

The terminal should update its progress, letting us know what the status is. Really useful when you have lots of benchmarks, each taking quite a bit of time.

[staabm]

:+1:

[bishopb]

:+1:

[Shaked]

:+1:

How does this idea sound:

• Create a new formatter to format the relevant data.
• Use PublisherInterface to set a publisher in the AthleticEvent class.
• Fire publish(args) from runMethodBenchmark. Args could be $method and $annotations.
• Possible if needed: add information to the log/stop log via annotation

Shaked