Mi save&load command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi start command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi stop command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi create command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi destroy command: support and validation

Function destroy_session now take a session as argument. It simplifies the mi
support and give further information on the destroyed session.

Regular output is not affected but the refactoring. We could add the
supplementary information for regular printing if wanted.

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi calibrate command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi add-context command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi enable_channel command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi enable-event command: support for enable-event command

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi set-session command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi disable-event command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi disable-channel command: support and validation

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Mi fix: basic formatting

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Fix mi: add support for Jul loglevel

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>
Comment mi: update mi_lttng_domain todo

Signed-off-by: Jonathan Rajotte Julien <jonathan.r.julien@gmail.com>