feat(nodejs): add dependency line numbers for npm lock files

[DmitriyLewen]

Description

Add dependency line numbers for npm lock files

e.g.:
package-lick.json file:

{
  "name": "intern-angular",
  "version": "1.0.0",
  "lockfileVersion": 1,
  "dependencies": {
    "@angular/animations": {
      "version": "4.2.6",
      "resolved": "[https://registry.npmjs.org/@angular/animations/-/animations-4.2.6.tgz"](https://registry.npmjs.org/@angular/animations/-/animations-4.2.6.tgz%22),
      "integrity": "sha1-nZyAoRmwwDaTy9I7uvcosVMf/8c="
    }
}

Trivy json result(with --list-all-pkgs flag):

➜ ./trivy fs -f json --list-all-pkgs ./package-lock.json
...
  "Results": [
    {
      "Target": "package-lock.json",
      "Class": "lang-pkgs",
      "Type": "npm",
      "Packages": [
        {
          "ID": "@angular/animations@4.2.6",
          "Name": "@angular/animations",
          "Version": "4.2.6",
          "Indirect": true,
          "Layer": {},
          "Locations": [
            {
              "StartLine": 6,
              "EndLine": 10
            }
          ]
        }
      ]
...

Related PRs

• feat(npm): add dependencies location go-dep-parser#134

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).