Expose editor.hover setting as real setting

[bpasero]

Today this setting is hidden because it is not added to the configuration schema.

[isidorn]

After talking to Alex he convinced me this is overly complicated due to debug setting the hover programitically which will fiight the whole configuration story.
Example: while debugging user opens an additional editor -> now this editor should also have hover disabled
Example2: when debugging is done which hover option should be respected. There might be a language specific hover which takes precedence

-> backlog

[kellytk]

@isidorn Complicated or not, FWIW, not being able to configure the hover delay introduces substantial friction to my use of VS Code.

[alexdima]

Done via 291c8e5

[kellytk]

@alexandrudima The code doesn't appear to allow for the feature to be enabled, but with a configurable delay. Is that correct?

[alexdima]

The setting is now available in intellisense in settings.json.