[FEATURE] Rename crate data_models to hyperswitch_domain_models

[deepanshu-iiitu]

Feature Description

Crate data_models needs to be renamed to hyperswitch_domain_models

Possible Implementation

Rename crate data_models to hyperswitch_domain_models and update it's references in entire codebase.

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

• I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

Yes, I am willing to submit a PR!