cabbage-bundle-list-mode for display bundles

[tonini]

I found the cabbage-list-bundle function at the weekend, but wasn't that happy how it was displayed.

I realized that list-buffers or list-processes display really nice table like lists, so I went a bit into the code and documentation and tried to realize something in the same manner for cabbage.

The File column is defined as follow-link and is clickable, so you get straight to the bundle.el file.

@senny what do you think?

[senny]

looking good. need some more time to review though.

[tonini]

@senny great catch!

I refined the cabbage-list-function to be less complex.

[tonini]

@senny Ok did the adaptions.

[tonini]

@senny :+1:

[senny]

thanks :yellow_heart: