feat(kafka): add payment_intent payment_attempt and refund kafka events for v2

[hrithikesh026]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Added payment_intent payment_attempt and refund kafka events for v2

Other changes:

• populate connector_metadata in AuthorizaRouterData in v2.

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

How did you test it?

Made a payment and refund and verified if proper events are logged into Kafka.

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
crates/api_models/src/payments.rs	80% smaller
crates/router/src/core/payments/transformers.rs	69% smaller
crates/common_enums/src/enums.rs	63% smaller
crates/hyperswitch_domain_models/src/payments.rs	25% smaller
crates/router/src/services/kafka/refund.rs	16% smaller
crates/router/src/services/kafka/refund_event.rs	16% smaller
crates/router/src/services/kafka/payment_intent_event.rs	5% smaller
crates/router/src/services/kafka/payment_intent.rs	2% smaller
crates/masking/src/secret.rs	0% smaller
crates/masking/src/serde.rs	0% smaller
crates/router/src/services/kafka/payment_attempt.rs	0% smaller
crates/router/src/services/kafka/payment_attempt_event.rs	0% smaller

[su-shivanshmathur]

LGTM