Support list of names in the parser to match profiles by name

[mafesan]

In the same way SortingHat supports a list of emails when parsing an identities file using GrimoireLab format, SH should also support this file including a list of names or aliases. Having this list would allow to match profiles using different names. After including this change, the YAML file could contain an entry like this one:

- profile:
    name: Tom Marvolo Riddle
  alias:
    - Tom M. Riddle
    - Tom Riddle
  enrollments:
    - organization: Dark Arts, Inc.
  email:
    - [email protected]
    - [email protected]