* add static_output attribute to enable GPU implementation of GenerateProposals.
This change may be reverted when dynamic shapes support will be implemented
in GPU plugin.
* - add GPU single layer test;
- add normalized attribute to SLT.
* add GPU primitive for GenerateProposals
* add kernel for GenerateProposals
* add unit test for GenerateProposals
* add blocked layouts support
* tidy up
* support blocked layouts also for 2nd and 3d outputs
* Transformation to deal with dynamic output in GPU
- revert changes in GenerateProposals interface and shape inferenece;
- add transformation;
- custom compare method in single-layer test.
* address review comments
* fix after rebase
* fix after rebase
* review comment: added nms_eta to testcase name generation
* - added input types combination to functional tests;
- fix float16 comparison.
* fix after rebase
* use vector for input ids
* fix after rebase
66b5f9acf2