Added torchdynamo backend entry point in package setup (#24178)

With this change, users don't have to add "import openvino.torch" in
their applications. Providing torch.compile(model, backend="openvino")
automatically imports the necessary modules. This simplifies the user
experience and enables PT2 based benchmarking OOB without any changes. .

More information can be found here:
https://github.com/pytorch/pytorch/pull/124536

JIRA: CVS-139370

---------

Co-authored-by: Surya Siddharth Pemmaraju <surya.siddharth.pemmaraju@intel.com>

src/bindings/python/wheel/setup.py

@@ -621,6 +621,7 @@ def find_entry_points(install_cfg):
     """Creates a list of entry points for OpenVINO runtime package."""
     entry_points = {
         "console_scripts": [],
+        "torch_dynamo_backends": ["openvino=openvino.frontend.pytorch.torchdynamo.backend:openvino"],
     }
     for comp_info in install_cfg.values():
         empty_point = comp_info.get("entry_point")

tests/layer_tests/pytorch_tests/pytorch_layer_test_class.py

@@ -15,7 +15,6 @@ from openvino.runtime import Core, Type, PartialShape
 import openvino.properties.hint as hints
 import torch
 from packaging import version
-import openvino.torch
 import pytest
 
 def skip_if_export(param, reason="Unsupported on torch.export"):