feat(routing): Enable volume split for dynamic routing

[Sarthak1799]

Type of Change

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

Description

Have added a new API for enabling volume split for dynamic routing service

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?

Will add in a bit

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

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Changed Files

File	Status
crates/router/src/routes/lock_utils.rs	83% smaller
crates/router/src/core/payments.rs	76% smaller
crates/router/src/routes/app.rs	28% smaller
crates/api_models/src/events/routing.rs	25% smaller
crates/router/src/core/routing.rs	19% smaller
crates/router/src/core/routing/helpers.rs	10% smaller
crates/api_models/src/routing.rs	10% smaller
crates/openapi/src/openapi.rs	1% smaller
crates/router/src/consts.rs	0% smaller
crates/router/src/core/payments/routing.rs	0% smaller
crates/router/src/routes/routing.rs	0% smaller
crates/router_env/src/logger/types.rs	0% smaller