Allow containers columns to be selected in config file

[nicolargo]

As for the #1524 (for the processlist), the list of columns displayed for the Container plugin should be configurable.

[github-actions]

This issue is stale because it has been open for 3 months with no activity.

[nicolargo]

Done in the develop branch.

New configuration key in the Glances conf file:

    [containers]
    # List of stats to disable (not display)
    # Following stats can be disabled: name,status,uptime,cpu,mem,diskio,networkio,command
    disable_stats=diskio,networkio

The previous example do not display diskio and networkio info in the container list.