Add Connext endpoints

[kaushalrajbacancy]

Description

• Added new endpoints: (1) getSupportedAssets : This returns supported tokens. (2) getQuotes : This fetches Quote Transactions. (3) getTransactionStatus : This fetches Transaction Status.

• The default provider is Connext.

  Types of changes

  What types of changes does your code introduce?

• [ ] Bugfix (non-breaking change which fixes an issue)

• [x] New feature (non-breaking change which adds functionality)

• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

• [ ] Documentation Update

• [ ] Code style update (formatting, renaming)

• [ ] Refactoring (no functional changes, no api changes)

• [ ] Build related changes

• [ ] Other (please describe):

Further comments (optional)

• It has been tested locally.

[linear[bot]]

PRO-2251 Add Connext endpoints into prime-sdk