* fake quantize single layer test for GNA plugin
* implemented fakequantize for fp32 case as an activation function
* added proper seed randomisation within single test run
* [GNA] [FAKEQUANTIZE] fixed ref-fp32 implementation on GNA to use nearbyint instead of roundf
* [GNA] [FAKEQUANTIZE] restored random seed
* [GNA][FAKEQUANTIZE] disabled 4d and integer tests for FakeQuantize
* [GNA][FAKEQUANTIZE]updated ngraph FakeQuantize builder to accept seed
* [GNA][FAKEQUANTIZE]aligned FP calculations order on GNA with reference ngraph - this however gives more error
* [CPU]build of FakeQuantise tests restored
* [TESTS][FAKEQUANTIZE] ignore extra inferRequests for disabled tests
* [GNA] Fixed legacy unit test failuers appeared due to extra check for possible segfault in import frames
* [GNA] adopted fuse multiple identities for FakeQunatize layer
* [GNA]fp32 runtime code review
f0b10bf071