Feature request: organize use command

[jamesmahler]

With eclipse + java... people hit ctrl + shift + o all the time. IntelliJ is ctrl + alt + o. This is probably the most used key short cut some people use.

Sometimes I see a lightbulb come up that can add an import, but this doesn't seem to always work. The compiler seems to output did you mean X or Y or Z when you have something you don't have a use for. This is handy that I can copy / paste it.

Unused imports are marked as unused, but don't seem to have any hint command to remove them.

However, It would be very useful IMO to have an organize command that: removed all unused, added all missing (with choice when multiple possible), and put them in a consistent order.

[joshhansen]

Currently going through a painful refactor that would be waaay easier if I could automatically clean up the imports. Extracting a struct from one module to another means copy-pasting all the imports, waiting to see which ones are unused, then removing each unused import manually. When splitting a ten-struct file into ten separate modules (my current task) it becomes a massive pain. I'd love to see this functionality.