Public access control: expose internal SDJWT properties

[kuldar-daniel]

Description of change

Makes the disclosures and JWT-s publicly accessible for the SD-JWT.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

N/A

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the readme
• My changes generate no new warnings
• I have added unit tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[kuldar-daniel]

Kotlin library does expose these as well:

https://github.com/eu-digital-identity-wallet/eudi-lib-jvm-sdjwt-kt/blob/main/src/main/kotlin/eu/europa/ec/eudi/sdjwt/Types.kt#L88

[dtsiflit]

Thank you very much for this @kuldar-daniel !