Make `advisoriesPath` option configurable
Make `advisoriesPath` option configurable

In order to support a better offline experience, the `advisoriesPath` option
needs to be configurable so that the `advisories.json` file can be placed in
a directory that will persist across multiple runs (for CI purposes).

nodesecurity/nsp,ABaldwinHunter/nsp-classic,requiresafe/cli,ABaldwinHunter/nsp