Always propagate profile to individual pipelines' stages when instantiating a DistributionMaker or Detectors instance

[thehrh]

Documenting before making a PR....

• when a DistributionMaker is created from an instanstiated Pipeline, profile is silently ignored. Instead, we should enforce pipeline.profile = profile (below

  pisa/pisa/core/distribution_maker.py

  Line 106 in 70f7153

  pipeline = Pipeline(pipeline, profile=profile)

  : else: pipeline.profile = profile)
• this will also correctly propagate profile when constructing a Detectors instance:

  pisa/pisa/core/detectors.py

  Line 84 in 70f7153

  profile=profile

Also, it would be convenient for both DistributionMaker and Detectors to also have a report_profile method, allowing us to profile all included pipelines at once. This would just iterate over pipelines (and print each name) respectively distribution_makers (same) and call the associated report_profile.

[thehrh]

Note, the above will not allow profiling setup of a pipeline originally instantiated with profile=False though, since the pipeline init already runs setup for each stage.