* Align copyright notice in python scripts (CVS-51320)
* Remove unnnecessary ir_version checks in the MO * Cleaned up 'backend_attrs_v2' function * Small clean up from the 'TFCustomSubgraphCall' * Clean up the MO extractor attributes mapping * Renamed PreluOp to PReLU
* Fix OneHot transformation for Bert Squad opset 10 * Add transformation for squeezing depth for OneHot