Tutorial: Verifiable Credentials

[JonathanHeiss]

Create a tutorial for range, time-dependent, membership, uniqueness proofs on credentials based on the system described in: https://arxiv.org/pdf/2209.09584.pdf
The respective code can found here: https://github.com/JonathanHeiss/ZoKrates-Credential-Verification/tree/main/patterns/range. It can be executed with the ./eval.sh script once all dependencies in ./../requirements.txt have been installed

[nikiblume]

@JonathanHeiss ready for review (https://github.com/ZoKratesPlus/zokratesplus.github.io/blob/test-branch-blog-and-tut-enabled/tutorials/applications/2023-04-01-tutorial-range-proofs-on-credentials.md)

[nikiblume]

Full Tutorial having range, time-dependent, membership, uniqueness proof visible under: https://github.com/ZoKratesPlus/zokratesplus.github.io/blob/test-branch-blog-and-tut-enabled/tutorials/applications/2023-04-01-verifiable-credentials.md

[nikiblume]

Closed, since done here: https://github.com/orgs/ZK-Plus/projects/2/views/1?pane=issue&itemId=117211934&issue=ZK-Plus%7CZK-Plus.github.io%7C96