[Feature Request]: Implement Decoder module (Token Generation)

[beesaferoot]

Preflight Checklist

• I have read the Contributing Guidelines for this project, if it exists.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Problem Description

To achieve support for token generation we need to have a way to encode and decode tokens. This should be used to implement an decoder, a port from the OpenPAYGO-python version. See token_decode.py

Proposed Solution

Port token decoder to Go. Check reference Above

Alternatives Considered

No alternative solution was considered.

Additional Information

No response