* [FE] Fix freezing placeholder via freeze_placeholder_with_value option
Currently, freezing placeholder via freeze_placeholder_with_value option does not work for any frontends. It happens due to absence of a node in _input_shapes dictionary.
* Add get_element_type method for InputModel
* Revert not needed changes
* Revert not needed changes
* Update freeze_placeholder_test
* Add tests for TF FE with freezing values of different types
* Fix Python API return value
* Correct returned type for get_numpy_ctype
* Apply code-review feedback
* Update src/frontends/tensorflow/src/input_model.hpp
Co-authored-by: Maxim Vafin <maxim.vafin@intel.com>
* Apply code-review feedback: no tf legacy specific routine and parameter names
Co-authored-by: Maxim Vafin <maxim.vafin@intel.com>
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