Multiple paths for submodule commits collection

[yliu-d]

Thanks for adding the monorepo support! I found it generally useful for common monorepo practices except the case when you want to collect commits that touched anything from a list of paths for a submodule. This is useful in following scenarios:

• when there are shared code in the repo and you want to collect commits that touched shared code in the release note of the consuming module.
• when you have multiple root folders for a submodule, such as separated Infrastructure and application code

Is your feature request related to a problem? Please describe.
No way to define a list of paths to match commits for a submodule in a monorepo.

Describe the solution you'd like
Add a separate argument to support a list of paths for commit matching, the existing path parameter should not be touched since there are use cases to match paths that do not contain the module manifest file (such as package.json for nodejs)

Describe alternatives you've considered
Use labels to match commits, not sure if that's supported in Github commits, looks like only PRs can have labels.

Additional context
Example monorepo structure:

infra/stackA
infra/stackB
common/sharedC
app/serviceA
app/serviceB

If both serviceA and serviceB depends on sharedC, I would like to collect messages from commits that touched sharedC when I release serviceA or serviceB. I may have infrastructure code stackA to deploy serviceA, hence any commits that touches stackA should also appear in release note of serviceA.