Regarding improvements in Documentation and codebase.

[SethiShivam]

Hi @dombrn @philpotisk @waltkb ,

I think there are some very good capabilities available in walt id but information about that is missing in dev. guide ,

and there are really good things in code which can be made a bit easier for developers to implement that.

Creating Vc template for issuer
https://github.com/walt-id/waltid-ssikit-examples/blob/master/src/main/kotlin/id/walt/ssikitexamples/CustomCredential.kt

if you notice , you will find that this example is only available in kotlin codebase not in java codebase ,
and 2nd thing is , it will be really great and easy for people if we have a function available directly from the library ,
I am saying this because we are creating a custom class in test cases but is not available in any package.

and If you think that I am going wrong than please correct me

Best Regards
Sethi Shivam

Describe the solution you'd like

I guess there should be directly a method available which we can import in our class and pass the custom template as JSON string or key value pair (something similar).

Additional context

No response