Add support for CVAT annotation format (#29)

* Add support for CVAT annotation format

* format

* update

* format

* remove sequence

* fix type check error

* keep order of attributes for python 3.7

* update xml compare

* clean up

* no nned for OrderedDict anymore as the xml comparison changed

* Update error message

* use Pydantic XML

* add pydantic-xml to project.toml

* update poetry.lock file

* update

* remove unused "type: ignore" comment

* update

* update after review

* remove test as it will produce mypy error

* update type of output_annotation_scope parameter

* fix test and  xml compare function

* remove default value from output-annotation-scope cli argument

* add default value for output_annotation_scope

Author: horatiualmasan

poetry.lock

@@ -15,6 +15,7 @@ python = ">=3.8"
 tqdm = "*"
 pyyaml = "*"
 pillow = "*"
+pydantic-xml = "*"
 
 [tool.poetry.group.dev.dependencies]
 mypy = "*"

pyproject.toml

@@ -4,6 +4,7 @@
     COCOObjectDetectionInput,
     COCOObjectDetectionOutput,
 )
+from labelformat.formats.cvat import CVATObjectDetectionInput, CVATObjectDetectionOutput
 from labelformat.formats.kitti import (
     KittiObjectDetectionInput,
     KittiObjectDetectionOutput,
@@ -53,6 +54,8 @@
     "COCOInstanceSegmentationOutput",
     "COCOObjectDetectionInput",
     "COCOObjectDetectionOutput",
+    "CVATObjectDetectionInput",
+    "CVATObjectDetectionOutput",
     "KittiObjectDetectionInput",
     "KittiObjectDetectionOutput",
     "LabelboxObjectDetectionInput",