Verification of resourceId before doing Profile look up and Authorisation request

[khanrn]

Description

While working on #510 it is discovered that there is (probably) no mechanism for verifying the existence of resourceId input before doing Profile look up and Authorisation request. It would be better to have such verification mechanism.

Reference:

altinn-notifications/src/Altinn.Notifications.Core/Services/ContactPointService.cs

Line 169 in 5336e50

var allUserContactPoints = await _profileClient.GetUserRegisteredContactPoints(orgNos, resourceId);

Probable Solution

1. First we need to verify from Storage that the app exists with the resource ID.
2. Then we need to verify the resource ID with a call to resource registry. Altinn Access Management has implemented a ResourceRegistryClient, which can be a source of inspiration to implement a client here in a similar fashion.

Additional Information

Related Issue(s) & PR(s):

1. Add regression and use case tests that include an app affiliation #510
2. #510 Implementation of adding regression and use case tests that include an app affiliation #540