Add FOSSA logic for NPM-based builds

This adds a fossa-npm.yml file, which can be used to generate fossa-with-cache CI jobs for any NPM-based build.

It is currently very simple, but serves as a starting point that we can extend as needed. The initial test pilot is Open ETP, demonstrated with osdu/platform/domain-data-mgmt-services/reservoir/open-etp-client!82 (merged).