renku session ls should show commit hash and start time

[rokroskar]

Current output of renku session ls does not make it possible to differentiate sessions from one another because they are shown only by ID. We should also show the commit hash and start time. Current output:

renku session ls
ID                                        STATUS    URL
----------------------------------------  --------  ---------------------------------------------------------------------------------------------------------------
roskarr-40-renku-2dmls-2dplugin-181ff4fc  running   https://renkulab.io/projects/rok.roskar/renku-mls-plugin/sessions/show/roskarr-40-renku-2dmls-2dplugin-181ff4fc
roskarr-40-renku-2dmls-2dplugin-6e06a7c5  running   https://renkulab.io/projects/rok.roskar/renku-mls-plugin/sessions/show/roskarr-40-renku-2dmls-2dplugin-6e06a7c5

It is not possible to tell from this information which sessions is which.

[mohammad-alisafaee]

We should also show the provider name (e.g. docker, renkulab).

[Panaetius]

consider showing information vertically in a more git log style