feat(connector): [ACI] Add banking redirect support for EPS, Giropay, iDEAL, and Sofortueberweisung

[pixincreate]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates

Description

• This PR adds support for Banking Redirects for Connector ACI.
• ACI's requirements are different for these banks and hence, before this gets merged, there is a need to make changes to the payments.rs file. This PR has temporary solution for all of those as banking redirects was developed keeping ACI in mind.
• payments.rs needs to be modified to support bic, iban, and bank_name, billing_details, preferred_language needs to be optional.
• Giropay, the transaction gets declined for unknown reasons. It is happening on their website itself.

Capture flow is unsupported

Additional Changes

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

1. payments.rs, Changes to the enum BankRedirectData is needed in order to get ACI bank. redirects working.
2. ACI result codes
3. Transformers file
4. Stripe Transformers

Motivation and Context

New feature for ACI that adds support for banking redirects.

How did you test it?

Testing was done manually since it requires human interaction for redirections

Checklist

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

[ArjunKarthik]

@pixincreate as discussed please remove your BankRedirectData changes. As per our api contract those can't be optional fields.