Update CoreML exports to support newer *.mlpackage outputs (#13222)

* Implement and default mlpackage generation for CoreML model exports

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Provide command line argument to export as *.mlmodel instead of *.mlpackage for CoreML

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Remove macOS check for CoreML quantization

Requirements for macOS during quantization was removed from coremltools 6.0

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Undo removal of warning catching

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Change file extension references from mlmodel to mlpackage

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>

* Auto-format by https://ultralytics.com/actions

---------

Signed-off-by: Ryan Hirasaki <ryanhirasaki@gmail.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: Ultralytics Assistant <135830346+UltralyticsAssistant@users.noreply.github.com>

.gitignore

@@ -54,6 +54,7 @@ VOC/
 *.onnx
 *.engine
 *.mlmodel
+*.mlpackage
 *.torchscript
 *.tflite
 *.h5