Combined policy endpoint for devportal

[volkflo]

We need a combined endpoint for policy and policy configurations for each API Version.

• Combined endpoint for plan policies and api policies (including their config)
• Hide critical policy configurations

The endpoint should return something like this:

{
  "apiVersion": [
    {
      "version": "1.0",
      "id": "Version1",
      "apiPolicies": [
        {
          "policyId": "0",
          "name": "Policy1",
          "config": {}
        },
        {
          "policyId": "1",
          "name": "Policy2",
          "config": {}
        }
      ],
      "plans": [
        {
          "name": "Gold",
          "id": "gold",
          "planPolicies": [
            {
              "policyId": "0",
              "name": "Policy1",
              "config": {}
            },
            {
              "policyId": "1",
              "name": "Policy2",
              "config": {}
            }
          ]
        }
      ]
    }
  ]
}