[Lens] Add an option to hide a layer or a dimension

[stratoula]

Describe the feature:
I think that hiding a lens layer or a dimension can be quite handy in Lens.

Imagine that you have added a breakdown dimension in Lens and you have changed the configuration (non default size for terms, non default palette, format etc) and you want to experiment with another breakdown for example but without losing your current work. It would be super useful to be able to hide this dimension, experiment with another and decide if you want to keep them both or only one of them. I imagine a hide icon next to the delete dimension icon.

This can be also useful when we enable the color by terms. The users do not want to lose their work, they might want to hide the dimension for a while to explore their aggregations/data and make decisions.

Another useful usage is to hide an entire layer. This is also supported on TSVB and I find it very useful. The users might want to configure multiple layers but to enable only some of them but without losing the other ones.
I imagine a hide icon next to the delete layer one

This is also relevant with this #130580. As a user I want to be able to hide the annotations/reference lines that are relevant to a layer.

[elasticmachine]

Pinging @elastic/kibana-vis-editors @elastic/kibana-vis-editors-external (Team:VisEditors)

[dej611]

Follow up from #151749 (comment)

Layer panel design:

Layer settings panel design:

[drewdaemon]

Two thoughts

Ambiguous meaning of "hidden"

The idea of hidden dimensions and hidden layers as expressed here is the inverse of the current hidden layers construct.

Here, we're talking about hiding the portions of the visualization that correspond to a particular dimension or layer. The current hidden layer concept (used for metric trendlines) does the opposite: hides the layer UI but keeps the portion of the visualization in the workspace visible.

Overlap with #144906

The purposes of these two issues are different, but the immediate outcome (removing portions of the Lens config before rendering) and the technical implementation could be identical.

Basically #144906 could become a request to "auto-hide" invalid portions of the Lens config.