* GAPI Fluid: SIMD for SubC kernel.

* Applied comments

* GAPI Fluid: SIMD for AddC kernel

* Final version

* Applied comments.

[G-API] Fix issue of getting 1D Mat out of RMat::View

* Fix issue of getting 1D Mat out of RMat::View
 - added test
 - fixed for standalone too (removed Assert(dims.empty()))

* Fixed asVeiw() function for standalone

* Put more detailed comment

[G-API] Fixed Coverity issues

* Fixed Coverity issues
 - VectorRef&OpaqueRef m_kind = CV_UNKNOWN
 - added same-type overload for saturate()
 - sanitized resize value in ByteMemoryInStream::operator>> (std::string& str)
 - handled throws from ~GStreamingExecutor()

* Catching exception by const ref

* Addressing Sergey's comments

* Applied enable_if semanitcs to saturate(x, round) too

* Removed uncaught_exception, made destructor noexcept back

* Split Fluid ConvertTo to multiple functions to avoid ifs; added CV_ALWAYS_INLINE

* Added FIXME to address throwings from stop()

* Fix standalone

* Addressing comments

* Guarded SIMD optimizations properly

* Removed excess parameter from simd_impl functions

[G-API] Enable 2D inputs for GIEBackend

* Enable 2D inputs

* Fix typo

GAPI Fluid: SIMD Div kernel.

* HAL implementation for Div kernel

* Removed dbg lines

* Applied comments.

* Reworked

* Final version

[G-API] Fix bugs in GIEBackend

* Remove inputs/outputs map from IEUnit

* Add test

* Add NV12 test

* Reorganize setBlob function

* Check that backend don't overwrite blob precision

* Stop setting config to global IE::Core

* Replace mutable to const_cast

* Update modules/gapi/test/infer/gapi_infer_ie_test.cpp

* Update modules/gapi/test/infer/gapi_infer_ie_test.cpp

* Make blob parameter as const ref

* Cosmetic fixes

* Fix failed test on inferROI

* Removed double ref for ii

* Disable tests

* Skip tests if device not available

* Use Sync prim under shared_ptr to avoid issue on MAC

* Apply WA for IE::Core

* Apply WA for MAC build

* Try to apply another WA

* Not release IE::Core for apple

* Put comment

* Support PreprocInfo for

* InferROI
* InferList
* InferList2

* Remove empty line

* Fix alignment
Co-authored-by: NMaxim Pashchenkov <maxim.pashchenkov@intel.com>

GAPI: Rename MatAdapter to RMatOnMat

Fluid: SIMD for Resize Linear 8UC3

* SIMD for fluid::Resize 8U3C

* Rework horizontal pass + add 8U4C case

* Reproduce stackoverflow test

* StackOverflow test

* SSE42 impl

* SSE42 impl improvement

* GAPI:SSE42 simd opt for Resize 8UC3. Final version

* Fix tests

* Conditional compilation fix

* Applied comments

* Applied comments. Step2

* Applied comments. Step2

* Rename RMat::Adapter to RMat::IAdapter

* Add comments

G-API: Extend ie::Params to specify batch size

* Add cfgBatchSize to ie::Params

* Fix comments to review

[G-API] Prohibit setPrecision & preprocessing for importedNetworks

* Prohibit preprocessing for imported networks

* Fix typo

input_names -> output_names

* Move setBlob logic to separate function

* Change comment

[G-API] Expand PyParams to support constInput

* Wrap constInputs to python

* Wrap cfgNumRequests

* Fix alignment

* Move macro to the line above

[G-API] Support FP16 input precision for IE backend

* Support fp16 input precision IE backend

* Add support to wrapIE

[G-API]: Add serialization mechanism for cv::MediaFrame

* Stub initial interface

* Fix templates for deserialization

* Fix tests

* Disable a warning on windows

* Address review comments

* Change enable_ifs to other template helpers

* Resolve ambiguous template

* Fix warnings in docs

GAPI: Implement ConstValue serialize/deserialize

* Implement ConstValue ser/deser

* Fix MacOs compile issue

* Fix Docs compile

* Change uint32 -> uint64 for serialize tag

G-API: Extend python bindings

* Extend G-API bindings

* Wrap timestamp, seqNo, seq_id
* Wrap copy
* Wrap parseSSD, parseYolo

* Rewrap cv.gapi.networks

* Add test for metabackend in pytnon

* Remove int64 pyopencv_to

G-API: Support remote inference

* Extend MediaFrame to be able to extract additional info besides access

* Add API for remote inference

* Add default implementation for blobParams()

* Add default implementation for blobParams()

* Address review comments

* Fix any_cast usage

* Add comment on the default blobParams()

* Address review comments

* Add missing rctx

* Minor fix

* Fix indentation and comment

* Address review comments

* Add documentation

G-API: Removing ParseSSD overload.

* Removed specialization.

* Removed united

G-API: Add transpose operation

* Add kernels decl & def

* Add draft for UT

* Fix UT for Transpose

* Add perf test

* Fix docs

* Apply comments

[G-API] IE backend convert fp32 to fp16

* Support FP16 in IE backend

G-API: ONNX. Adding INT64-32 conversion for output.

* Added int64 to 32 conversion

* Added warning

* Added type checks for all toCV

* Added type checks for tests

* Small fixes

* Const for fixture in test

* std::tuple if retutn value for toCV

* Mistake

* Changed toCV for tests

* Added Assert

* Fix for comments

* One conversion for ONNX and IE

* Clean up

* One more fix

* Added copyFromONNX

* Removed warning

* Apply review comments

[G-API] Introduce custom python operator API

* Introduce custom python operator API

* Add wip namespace

G-API: IE. Adding support for INT32 type.

* Added support for int32

* Added sample for semantic-segmentation-adas-0001

* Alignment

* Alignment 2

* Rstrt build

* Removed test for sem seg

[G-API]: Performance tests for KalmanFilter

* Kalman perf.tests and some tests refactoring

* Input generation moved to a separate function; Slowest case sneario testing added

* Generating refactored

* Generating refactoring

* Addressing comments

[G-API] Support generic infer overloads

* Overloads for generic infer

* Fix build

* Refactoring

* Fix docs

* Put extra stuff to detail namespace

* Add doc for usings

* Remove uneccessary template in Priv

G-API: Implement async version for InferList & Infer2

* Implement async version for InferList & Infer2

* Fix warning

* Fix bug with roi ordering

* Post input meta instead of empty

* Fix comments to review