* Removed legacy IE shape infer
* Removed GenericIE operation
* Removed legacy shape infer tests
* Removed legacy test with legacy IE reshape
* Fixed compilation issues related to removal of GenericIE
* Fixed one more compilation issue with clDNN
* Fixed test for reading experimental ops
* Updated tests and make IR Reader to load old experimenal and extension ops as opset6
* Change opset of some ops only if they are currently experimental/extension to avoid situation like opset1::Proposal -> opset6::Proposal
* Removed more legacy code
* Returned back code removed by mistake
* Fixed issues related to incorrect merge with master
* Merge fixes
* Fixed unit tests which starts to fail because now loading the model with unknown operation is failed earlier
* Removed incorrectly added code
Co-authored-by: Evgeny Lazarev <elazarev.nnov@gmail.com>