[OpenVINO backend]: Implement numpy.identity

[11happy]

Overview:

• This PR implements support for numpy.identity operation

Testing:

• A single Test for bfloat16 is failing on my local end, rest all are passing.
  

CC:

• @rkazants

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.69%. Comparing base (895a123) to head (9cec5c6).
Report is 12 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21083      +/-   ##
==========================================
+ Coverage   82.65%   82.69%   +0.03%     
==========================================
  Files         564      564              
  Lines       54097    54140      +43     
  Branches     8406     8412       +6     
==========================================
+ Hits        44716    44769      +53     
+ Misses       7303     7296       -7     
+ Partials     2078     2075       -3     

Flag	Coverage Δ
keras	82.50% <100.00%> (+0.03%)	⬆️
keras-jax	64.06% <0.00%> (+0.01%)	⬆️
keras-numpy	59.09% <0.00%> (-0.04%)	⬇️
keras-openvino	32.89% <100.00%> (+0.26%)	⬆️
keras-tensorflow	64.34% <0.00%> (-0.02%)	⬇️
keras-torch	64.10% <0.00%> (+0.01%)	⬆️

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[rkazants]

could you also remove NumpyArrayCreateOpsCorrectnessTest::test_identity line above to switch on the test

[11happy]

done

[rkazants]

Please fix the test:

FAILED keras/src/ops/numpy_test.py::NumpyDtypeTest::test_identity_bfloat16 - IndexError: map::at

[11happy]

I have fixed the dtype error @rkazants.
Thank you : )

[rkazants]

@fchollet, looks good to me. Recommend to merge