added authorization requirement to endpoints

[acn-sbuad]

Description

• Added requirement of scope or accesstoken to relevant endpoints
• Implemented middleware for retrieving org info from user claims or access token issuer
• Updated test project to reflect changed requirements
• Temp scope name set up, but not registered in maskinporten. Open to update after conversations with Maskinporten next week.

Related Issue(s)

• Authorization requirements for different aspects of the notification system #8

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)
• All tests run green

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

95.2% Coverage
0.0% Duplication