feat(db): implement MerchantAccountInteraface for Mockdb

[akhildevelops]

Type of Change

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

Description

Mockdb is a stub to avoid costly interactions with db during testing. This PR powers mockdb to have MerchantAccountInterface for adding, deleting, searching merchant accounts.

Additional Changes

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

Motivation and Context

Fixes #2438

How did you test it?

Checklist

• I formatted the code cargo +nightly fmt --all
• 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/router/src/db/merchant_account.rs	9% smaller
crates/diesel_models/src/merchant_account.rs	0% smaller
crates/hyperswitch_domain_models/src/merchant_account.rs	0% smaller
docker-compose-development.yml	Unsupported file format

[akhildevelops]

@gorakhnathy7 I'm done in implementing the interface. Please review and provide if there are any comments.

[akhildevelops]

It's been quite some time since this pr is reviewed.

[akhildevelops]

@SanchithHegde Can you check now, I've found an innovative way without cloning and skipping lot of boilerplate to update merchant account by implementing a special trait to Option

[akhildevelops]

@SanchithHegde, can you review now re-designed merchantaccount updates for mockdb

[SanchithHegde]

Other than that, looks good to me!

[akhildevelops]

Done

[SanchithHegde]

@akhildevelops Could you please address the failing clippy / compilation checks?

[akhildevelops]

@SanchithHegde Can you please check now by running workflows.