Add support for multiple authentication

[sufyankhanrao]

Currently, we support only one auth scheme, now we have to support multiple auth schemes with different combinations i.e. using AND/OR. There should be any breaking change introduced due to this support. The task is comprised of the following checklist.

• Add the public user-facing changes for multiple auth in RequestBuilder
• Add support for combining authentication credentials as AND/OR groups
• Add unit tests to cover this feature