feature(connector): add support for worldline connector

[ArjunKarthik]

Type of Change

• [ ] Bugfix
• [x] New feature
• [ ] Enhancement
• [ ] Refactoring
• [ ] Dependency updates

Description

Adding support for worldline payment gateway

Payment Method: card Supported payment flows

Authorize PSync Refund RSync Cancel

Additional Changes

• [ ] This PR modifies the database schema
• [ ] This PR modifies application configuration/environment variables

Motivation and Context

Adding new connector worldline

How did you test it?

Added unit tests for mentioned payment flows

Checklist

• [x] I formatted the code cargo +nightly fmt --all
• [x] I addressed lints thrown by cargo clippy
• [x] I reviewed submitted code
• [x] I added unit tests for my changes where possible
• [ ] I added a CHANGELOG entry if applicable