Use new error type & log in GetPayChsInfo

[anagha-ks]

Description

For GetPayChsInfo API:

• Update it to return the newly defined error type (#132)
• Log the request, error/success response are logged in a structured format (#133)

Category

Implementation Task

Relevant issue

Testing

Steps to run the tests

1. All existing tests should pass

Checklist

• [x] Name is added to the NOTICE file, if it is not present already.
• [x] Changes are rebased onto the target branch.

[manoranjith]

LGTM. Could you please rebase onto latest develop ?