* Refine ov_partial_shape for OV 2.0 C interface
To avoid potential string security problem, remove string pointer from ov_partial_shape structure.
* Remove redundant code
* fix typo issue
* fix shape test issue
* fix some minor issues
* Address reviewing comments
Use Dimension to represent rank of parital shape.
* Appy safer method to parse partialShape string
1. adopt ov::Dimension::value_type to construct ov::Dimension
2. safter method to convert string to dimension value
3. apply std::vector<std::string> to replace std::vector<char *> during pasrsing partialShape string
Change-Id: I0e0b70a915fc5c5fefad51de51f167798854f55e
ce5b2c6a45