updated test issuer to support x509

[berendsliedrecht]

• Added X.509 self signed certificate
• Removed all did references
• Removed cheqd/indy vdr funcitonality
• format/linting using biome
• Openid4vci draft 13
• Use Architecture Proposal 2.0 PID example
• Select credential based on VCT

[TimoGlastra]

We'd fork the repo right?

[berendsliedrecht]

We'd fork the repo right?

Yes, I think gh cli made it automatically to this repo. new one is here: https://github.com/animo/openid4vc-playground-funke/pull/2