added new custom resource SecurityContacts

[Rama-Ayyagari]

added new custom resource SecurityContacts

policies:
    - name: mck-azure-security-ensure-send-email-notification-for-high-severity-alerts-is-enabled
    resource: azure.security-contacts
    filters:
        - name: default
        - properties.alertNotifications.state: "On"

Sample response of security conatacts

{
  "value": [
    {
      "id": "/subscriptions/20ff7fc3-e762-44dd-bd96-b71116dcdc23/providers/Microsoft.Security/securityContact/default",
      "name": "default",
      "type": "Microsoft.Security/securityContact",
      "properties": {
        "notificationsByRole": {
          "state": "On",
          "roles": [
            "Owner",
            "Admin"
          ]
        },
        "emails": "john@contoso.com;Jane@contoso.com",
        "phone": "(214)275-4038",
        "alertNotifications": {
          "state": "On",
          "minimalSeverity": "Low"
        }
      }
    }
  ]
}

[thisisshi]

Hi @Rama-Ayyagari looks like this is hitting some lint issues, could you resolve? thanks!

[thisisshi]

Also missing a test