Feature Request: Options to use Mock Signins more then once.

[wSedlacek]

mockbase/auth/auth.ts

Line 181 in bcb6bdb

this.socialSignIns.delete(mock);

It would be great if a Mock Sign In could be used more then once. In testing frameworks like jest there are methods that allow mocking only once and mocking more then once and having similar functionality with this library.