Gradebook service test client.

[itamart]

The plugin currently contains testclient_form for the Moodle core test client, but this form does not work because it does not have input fields for item details and grades. While this form may be fixed it may be better to implement the an internal test client for the plugin to have better control over input and output.

• Protocol - fixed to REST
• Response format - XML|JSON (default to JSON).
• Auth - select either Password/Username or Token.
• Service params
  • Source of grade - string (default: mhaairs)
  • Course id - string (default: empty)
  • Item type - string (default: mod)
  • Item module - string (default: assignment)
  • Item instance - string (default: 0)
  • Item number - string (default: 0)
• Item details (null if not enabled)
  • Category id - string (default: empty)
  • Course id - string (default: empty)
  • Identify type - string (default: empty)
  • Item name - string (default: empty)
  • Item type - string (default: mod)
  • Id number - string (default: 0)
  • Grade type - string (default: 1)
  • Grade max - string (default: 100)
  • Item info - string (default: empty)
  • Deleted - bool (default: false)
• Grades (null if not enabled)
  • User id - string (default: empty)
  • Grade - string (default: empty)