Merge branch 'release/0.2.0' into develop
Implemented configuration classes.
Major refactor.
Namespace reshuffle.
Implemented an mOTP generator.
Completed mOTP support.
Implemented shared parameters and credentials.
Refactored credentials.
Refactored shared parameters.
Refactored validation results.
Implemented generic credential sequence validation.
Refactored generators.
Refactored initialization URI factories.
Moved GA URI classes into correct namespace.
Refactored to use driver classes.
Standard OTP value interface.
Setters for shared parameters.
Common interface for OTP value generators. Closes #1.
Refactored validators. Closes #2.
Updated OTP feature test suite.