Lock features with tests

Commands

• about
• authfile, every kind of authentication files
• balance
• blocks
• #375: certify: every use cases
• diffi
• history: #339
• info
• #221 (closed): license behavior
• #389: lookup
• net
• tx: !130 (merged): intermediaries tx, multi-output tx
• wot status

Code

• authentication
• network part

Tool

• pytest-click: click module fixture for Pytest.
• duniter-mirage