[feature] Add word crop general orientation to output

[felixdittrich92]

This PR:

• Add result from crop orientation classifier to the output (so users are able to work with the general word orientation)

Any feedback is welcome 🤗

Note: feature request from: @mllife

[felixdittrich92]

API will fail until it's merged into main because (main branch):

doctr/api/pyproject.toml

Line 14 in d932175

python-doctr = {git = "https://github.com/mindee/doctr.git", extras = ['tf'], branch = "main" }

But it works:
KIE:

[
  {
    "name": "vertical.png",
    "orientation": {
      "value": null,
      "confidence": null
    },
    "language": {
      "value": null,
      "confidence": null
    },
    "dimensions": [
      632,
      1508
    ],
    "predictions": [
      {
        "class_name": "words",
        "items": [
          {
            "value": "Consolidated",
            "geometry": [
              0.0556640625,
              0.06892182555379744,
              0.1806640625,
              0.1364962420886076
            ],
            "confidence": 0.64,
            "crop_orientation": {
              "value": 0,
              "confidence": null
            }
          },

OCR:

[
  {
    "name": "6.jpg",
    "orientation": {
      "value": null,
      "confidence": null
    },
    "language": {
      "value": null,
      "confidence": null
    },
    "dimensions": [
      4624,
      3468
    ],
    "items": [
      {
        "blocks": [
          {
            "geometry": [
              0.25390625,
              0.2880859375,
              0.4075520833333333,
              0.392578125
            ],
            "lines": [
              {
                "geometry": [
                  0.30598958333333337,
                  0.2958984375,
                  0.31380208333333337,
                  0.3017578125
                ],
                "words": [
                  {
                    "value": "A",
                    "geometry": [
                      0.30598958333333337,
                      0.2958984375,
                      0.31380208333333337,
                      0.3017578125
                    ],
                    "confidence": 0.17,
                    "crop_orientation": {
                      "value": 0,
                      "confidence": null
                    }
                  }
                ]
              },

with assume_straight_pages=False:

"words": [
                  {
                    "value": "temtemnestpe.secines",
                    "geometry": [
                      0.1366126537322998,
                      0.4366913139820099,
                      0.2622371315956116,
                      0.40304186940193176,
                      0.27151674032211304,
                      0.4225289523601532,
                      0.14589223265647888,
                      0.4561783969402313
                    ],
                    "confidence": 0,
                    "crop_orientation": {
                      "value": 90,
                      "confidence": 0.79
                    }

{
            "value": "TLOUTSLAPS",
            "geometry": [
              0.24755072593688965,
              0.4060332179069519,
              0.31999316811561584,
              0.389607310295105,
              0.3279702067375183,
              0.4093964695930481,
              0.2555277347564697,
              0.425822377204895
            ],
            "confidence": 0,
            "crop_orientation": [
              90,
              0.98