Exec into specific container

[lduparc]

Hi,

In case of multiple container for a pod, it would be interesting to attach to a specific container instead of the default one (the first).

Popup a list of available container (if more than one) before attach to it.

Thanks

[astefanutti]

That relates to #13 for logs. Ideally we should design a consistent way to select containers.

[astefanutti]

As a poor-man solution, 60184b1 uses the same container selection mechanism than the log widget.

Let me close this and follow-up on #13 to improve the overall user experience.