Support "claims" OpenID Connect auth request parameter

[iainmcgin]

OpenID Connect Core 1.0, Section 5.5, claims parameter:

OPTIONAL. This parameter is used to request that specific Claims be returned. The value is a JSON object listing the requested Claims.

An example Claims request is as follows:

{
  "userinfo":
  {
      "given_name": {"essential": true},
      "nickname": null,
      "email": {"essential": true},
      "email_verified": {"essential": true},
      "picture": null,
      "http://example.info/claims/groups": null
  },
  "id_token":
  {
      "auth_time": {"essential": true},
      "acr": {"values": ["urn:mace:incommon:iap:silver"] }
  }
}

[Abdelsattar]

any WIP for this enhancement and how we can currently send claims?

[agologan]

@Abdelsattar added support for passing in claims and claims_locales in v0.10.0.
Since claims is a structured object you'll have to create and pass in a JSONObject to make use of it.

You can also use additionalParameters to pass in parameters which are not yet supported by the lib.
Let me know if you run into any issues.

[Abdelsattar]

Thanks, @agologan for the updates, yes Currently I'm using additionalParameters to send it and will use claim when refactor