Support for manual packaging when `scancentral package` fails or not appropriate

[kadraman]

Enhancement Request

There are some instances where the manual creation of a Zip package is required, rather than using the scancentral package command. This could be because files cannot be included/excluded easily or the command fails. It would be good to allow the github-action to exclude packaging, e.g.:

      uses: fortify/github-action@v1
      with:
        sast-scan: true
        package: false

or similarly using a DO_PACKAGE option.