Add 3 new Authenticator classes: Basic, BearerToken and APIToken

Stephen Baileyrequested to merge
stkbailey/singer-sdk:add_basic_authenticator into main

This MR resolves Issue #185 (closed) and adds a BasicAuthenticator class to the SDK, that can be used to encode a username and password into token for basic authentication.

This MR was expanded to include three new classes: BasicAuthenticator, BearerTokenAuthenticator, and APITokenAuthenticator

Edited by AJ Steers

Merge request reports