[Feature]: Allow cfg for specifying include/exclude

### How will this affect the next version number?

New feature (increment MINOR version)

### Is your feature request related to a problem?

Specifying `include/exclude` on the command line can quickly become complicated, e.g., in the data publication team's use of `zstash`.

### Describe the solution you'd like

@TonyB9000 mentioned it would be useful to give values for the `include` and `exclude` parameters via a list in a file rather than a command-line string

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

Start by locating zstash’s command-line handling for the include and exclude parameters, then trace how configuration values are parsed. Verify how a file-based list should be represented and ensure both options accept values from a file; done means users can provide include and exclude lists without a complex command-line string.

Written by the indexing model from the issue text.