[Feature Request]: Consider set_datanames to support negative selection.

[gogonzo]

Feature description

Imagine following

data <- teal_data() |> within({
  iris <- iris
  mtcars <- mtcars
  dummy_1 <- 1
  dummy_2 <- 2
})

modules(
  example_module() |> set_datanames("mtcars"),
  example_module()
) |> set_datanames(-dummy_1, -dummy2)

Thanks to above, there will be an alternative solution to exclude datanames without using dot-prefix.

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[donyunardi]

Acceptance Criteria

• Enhance set_datanames function to allow enable user to define negative selection when setting datanames
• Analyze and Define clear condition on what happens to datanames when negative selection is applied to different scenarios (i.e. all, specific datasets selected, and transformer)