Update the schedule endpoint to add professor names and link

[SergioEstevao11]

Update the endpoint /schedule/ so it also contains the professor's name and links to its sigarra professor or composed professor page

• To add to the return JSON: { ... "professors_url": "www." "professors_information":

  [{
  acronym: "UDT"
  nome: "Uno Dos Tres"
  },
  {
  acronym: "JD"
  nome: "John Doe"
  }]

  }

• To remove: professor_acronyms, professor_sigarra_id