Json output format support

[riteshnoronha]

I have added support for JSON output. This should help with post analysis of the results produced. The current implementation batches all the scores in memory, before writing it out. This works well with directorys with upto maybe 1000 files, once it exceeds those, this approach is not idle. We will need to think through a streaming option for directories with large number of file.s

➜  sbomqs git:(38-feature-request-output-json) ./build/sbomqs score --category NTIA-minimum-elements --filepath samples/julia.spdx.json --reportFormat JSON
{
  "run_id": "65346347-119f-4de3-9762-5af8f717c5e0",
  "timestamp": "2023-02-17T09:47:07Z",
  "creation_info": {
    "name": "sbomqs",
    "version": "v0.0.6-1-geb3d2e6-dirty",
    "scoring_engine_version": "1"
  },
  "files": [
    {
      "file_name": "samples/julia.spdx.json",
      "spec": "spdx",
      "spec_version": "SPDX-2.2",
      "file_format": "json",
      "avg_score": 5.840336134453781,
      "scores": [
        {
          "category": "NTIA-minimum-elements",
          "feature": "Components have names",
          "score": 10,
          "max_score": 10,
          "description": "34/34 have names"
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Doc has relationships",
          "score": 10,
          "max_score": 10,
          "description": "doc has 1 relationships "
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Components have versions",
          "score": 0.29411764705882354,
          "max_score": 10,
          "description": "1/34 have versions"
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Components have uniq ids",
          "score": 0,
          "max_score": 10,
          "description": "0/34 have unique ID's"
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Doc has creation timestamp",
          "score": 10,
          "max_score": 10,
          "description": "doc has creation timestamp 2021-12-21T07:13:19Z"
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Components have supplier names",
          "score": 0.5882352941176471,
          "max_score": 10,
          "description": "2/34 have supplier names"
        },
        {
          "category": "NTIA-minimum-elements",
          "feature": "Doc has authors",
          "score": 10,
          "max_score": 10,
          "description": "doc has 2 authors"
        }
      ]
    }
  ]
}

[kchetans]

LGTM