Run tfaction if file outside of working directory changes

[florianmutter]

Run tfaction if file outside of working directory changes

[suzuki-shunsuke]

Thank you for your proposal.
It's convenient but complicated to parse Terraform configuration and resolve dependencies automatically,
so it's nice if we can define dependencies explicitly somehow.

For example, we may be able to define dependencies in tfaciton.yaml.
Note that the following codes are just example.

tfaciton.yaml

dependencies:
  - ../common
  - ../../secrets