Initiate digit-core(tracer) in go and add logging interceptors

[talele08]

Create a new base library that encapsulates all core functionalities and can be imported by any microservice.
Begin by implementing HTTP request logging within the library.
Ensure that the logging format remains consistent with the existing implementation.

[Rishabh-egov]

23/04/2024: Setting up dev environment along with boilerplate code for digit-core library