* Add fused Squeeze op

* Use fused Squeeze op in ONNX importer

* Update serializer

* Add unit tests

* Add type prop tests

* Change Squeeze signature to accept a dynamic input for axes

* Update src/ngraph/op/fused/squeeze.cpp
Co-Authored-By: Adam Rogowiec <adam.rogowiec@intel.com>

* Code review comments

* Fix failing unit test

* Code review comments

* Code review comments

* style

* Add op to iGPU backend

* Add op to iGPU backend