Feature: token service and endpoint

[borisrizov-zf]

Description

This is an implementation of the "/token" endpoint, which is part of the authorized VP flow for resource sharing between EDCs. Replaces #179 Closes #139

Pre-review checks

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• [x] DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• [x] Copyright and license header are present on all affected files

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[borisrizov-zf]

@florianrusch-zf I pushed the mentioned fixes.

[sonarcloud[bot]]

Quality Gate passed

Issues
8 New issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[borisrizov-zf]

@DominikPinsel @florianrusch-zf hey, I've pushed a new Validator class for the SecureTokenRequest. Take a look if you're interested in the change, but it's basically the same as before, just in a more modern way.

[github-actions[bot]]

:tada: This PR is included in version 0.5.0-develop.2 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket:

[github-actions[bot]]

:tada: This issue has been resolved in version 0.5.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: