FR: Add `create` and `modify` attributes to `--include`/`--exclude` filters

[Lockszmith-GH]

Is your feature request related to a problem? Please describe.

I have an elaborate fuzzy selector created for my chezmoi edit workflow. (mentioned here)
I would like to create special functionality for create and modify attributed files (I want to allow the user to open both source and target in the editor), and for that I need to identify the file's type.

Describe the solution you'd like

The ability to do --include create,modify or exclude, by any command supporting the include/exclude options.

Describe alternatives you've considered

testing each managed file's after selection for the keywords create/modify - that will be rather slow for mulitple files.

[twpayne]

For the record, I'm trying to implement this in #5120 but it's more complicated than I expected. Basically, --include=create implies --exclude=files but as files can be both files and create, everything gets excluded. I think the fundamental problem is that chezmoi's --include/--exclude flags combined with how chezmoi represents different types of files don't interact well at the moment. This requires further thought/investigation.

[Lockszmith-GH]

Thanks for the update.

What about a 2nd tier filter? as in whatever --include/--exclude results in (default is 'everything') --filter or --attr by attribute, in this case create. --no-... to negate the filter.

This is for chattr only attributes.