Issue: [FEATURE] : [CONNECTOR] Add Billwerk, Fiservemea, Tsys supported payment methods, currencies and countries in feature matrix

### Feature Description

Add Billwerk, Fiservemea, Tsys supported payment methods, currencies and countries in feature matrix

### Possible Implementation

Add Billwerk, Fiservemea, Tsys supported payment methods, currencies and countries in feature matrix

### Have you spent some time checking if this feature request has been raised before?

- [x] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [x] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

Yes, I am willing to submit a PR!

Resolution: <think>
PR Context:
- Title: feat(connector): [BILLWERK, FISERVEMEA, TSYS] add in feature matrix api
- Merged: 2025-03-11T13:56:43Z
- Files changed: 9 files
- Commits: 3 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [x] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Add Billwerk, Fiservemea, Tsys supported payment methods, currencies and countries in feature matrix

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies appli
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** feat(connector): [BILLWERK, FISERVEMEA, TSYS] add in feature matrix api (#7165)
Co-authored-by: Anur
Files to modify:


**crates/hyperswitch_connectors/src/connectors/billwerk.rs**
  Remove:
    - function: private::validate_connector_against_payment_request
    - impl: impl ConnectorValidation for Billwerk
    - impl: impl ConnectorSpecifications for Billwerk
  Add:
    - function: private::get_connector_about
    - function: private::get_supported_payment_methods
    - function: private::get_supported_webhook_flows
    - impl: impl ConnectorValidation for Billwerk
    - impl: impl ConnectorSpecifications for Billwerk

**crates/hyperswitch_connectors/src/connectors/fiservemea.rs**
  Remove:
    - function: private::validate_connector_against_payment_request
    - impl: impl ConnectorValidation for Fiservemea
    - impl: impl ConnectorSpecifications for Fiservemea
  Add:
    - function: private::get_connector_about
    - function: private::get_supported_payment_methods
    - function: private::get_supported_webhook_flows
    - impl: impl ConnectorValidation for Fiservemea
    - impl: impl ConnectorSpecifications for Fiservemea

**crates/hyperswitch_connectors/src/connectors/tsys.rs**
  Remove:
    - function: private::validate_connector_against_payment_request
    - impl: impl ConnectorValidation for Tsys
    - impl: impl ConnectorSpecifications for Tsys
  Add:
    - function: private::get_connector_about
    - function: private::get_supported_payment_methods
    - function: private::get_supported_webhook_flows
    - impl: impl ConnectorValidation for Tsys
    - impl: impl ConnectorSpecifications for Tsys