Update docs and/or error message for require/exclude interactions

[waynew]

See #6237 for more info. Basically, if you have a state like:

some state:
  test.nop

this will break:
  test.nop:
    - require:
      - test: some state

exclude:
  - id: some state

it will correctly break, because you excluded something you required. But it doesn't give you a helpful message:

          ID: this will break
    Function: test.nop
      Result: False
     Comment: The following requisites were not found:
                                 require:
                                     test: some state
     Started: 19:30:31.313592
    Duration: 0.03 ms
     Changes:

We want to update the require/exclude docs to call out that this is a bad idea, but we also want to either:

• Produce an error message that says something like, "Nope, you're excluding a required state and that will not end well"

or

• Produce an error message in the comment that says something like, "This requisite was not found because you excluded it. That doesn't work very well."

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

If this issue is closed prematurely, please leave a comment and we will gladly reopen the issue.

[sagetherage]

not stale

[stale]

Thank you for updating this issue. It is no longer marked as stale.

[sagetherage]

wrong ticket for dup - my bad