Updating applicability api to accept unit_criteria instead of list of unit keys, updating docstrings and unit tests
Few minor corrections
implementation of errata-centric report style for applicability report
updated type of consumer_profile_and_repo_ids parameter
Updated applicability api to accept override_config from the user instead of report_style and moved logic to build report accpording to the report_style to rpm pkg and errata profiler api
fixing unit tests
Merge pull request #425 from pulp/skarmark-928509

Moved report style logic to profiler plugins