Mateusz Mikolajczyk

Fix Subgraph serialization/de-serialization

4

### Details: - Add default constructor for Subgraph object - Add Subgraph operation into extensions - Fix Subgraph attribute serialization ### Tickets: - 63594

### Do not merge - This PR may have significant impact on PyTorch frontend conversion. It shouldn't be merged until review and may require some additional tests to be added/executed,...

### TODO - this is initial draft - Run performance tests to identify/measure possible regressions compared to previous version and if necessary, look for possible optimizations - Measure increase in...

### Details: - *Extend StridedSlice/Slice implementation with SliceScatter support in CPU plugin* ### Tickets: - *CVS-149074*

### Details: - *Add SliceScatter-15 decomposition transformation for unsupported plugins* - *...* ### Tickets: - *CVS-151158*

### Details: - *Bounds for concatenation node weren't recalculated after AbsSinking in SymbolicOptimizations, causing throw due to improper bounds* - *Fix by removing SkipInvalidation mark and re-evaluating bounds* - *Added...