feat(daml): creation of connector class

[jagpreetsinghsasan]

Description

As a developer, I want to create the daml connector class which includes an openapi spec file for the daml related functional endpoints, generated code from that openapi spec file, the connector class which utilizes the generated code to implement the functionality along with test cases to test the openapi specs, generated code, connector class, test tooling class and the underlying aio based test ledger
Prometheus exporter shouldn't be a part of this task. A seperate task will be created to incorporate that

openapi spec file for besu
besu connector class
besu test cases

Acceptance Criteria

1. DAML connector class which includes the functionalities provided by the DAML ledger
2. Openapi specs along with the generated code
3. Test cases to test the above functionality

[raynatopedrajeta]

Hello @jagpreetsinghsasan ,

Please assign this ticket to me. Thanks!

Rayn