Analytics for get notifications

[chris13524]

Send analytics events when notification IDs are retrieved with the wc_notifyGetNotifications method (4014) as per the design doc

Event:

• event_at - Time at which the event was generated
• topic - The relay topic used to manage the subscription that the get notifications request message was published to
• message_id - Relay message ID of request
• get_by_iss - JWT iss that made the request
• get_by_domain - CACAO domain that made the request
• project_pk - Primary key of the project in the Notify Server database that the subscriber is subscribed to
• project_id - Project ID of the project that the subscriber is subscribed to
• subscriber_pk - Primary Key of the subscriber in the Notify Server database
• subscriber_account_hash - Hash of the CAIP-10 account of the subscriber
• notification_topic - The topic that notifications are sent on
• subscriber_notification_id - The ID of the subscriber-specific notification
• notification_id - The ID of the notification
• notification_type - The notification type ID
• returned_count - The total number of notifications returned in the request