__STDCALL macro change to support IPP 2018u3+ external packages
    Memory leak fix in Gaussian filter
    Improved checkers for OpenMP supported features
    Improved declarations for atomic operations.

ICV binary and package version are the same.

Signed-off-by: Li Peng <peng.li@intel.com>

Signed-off-by: Li Peng <peng.li@intel.com>

Signed-off-by: Li Peng <peng.li@intel.com>

Signed-off-by: Li Peng <peng.li@intel.com>

  * let OpenCL kernel run only on Intel GPU
  * brush up the workaround based on 9a2b028 from alalek

resolves #11511

Pass --test_bigdata to allow launching of "BigData" tests.

instead of an ad-hoc implementation of it

* make sure that the matrix with more than INT_MAX elements is marked as non-continuous, and thus all the pixel-wise functions process it correctly (i.e. row-by-row, not as a single row, where integer overflow may occur when computing the total number of elements)

Repo: https://github.com/libjpeg-turbo/libjpeg-turbo.git
Tag: 1.5.3

excluded libjpeg-turbo files:
- bmp.c
- bmp.h
- cderror.h
- cdjpeg.c
- cdjpeg.h
- cjpeg.c
- djpeg.c
- example.c
- jcstest.c
- jdatadst-tj.c
- jdatasrc-tj.c
- jpegtran.c
- rdbmp.c
- rdcolmap.c
- rdgif.c
- rdjpgcom.c
- rdppm.c
- rdrle.c
- rdswitch.c
- rdtarga.c
- tjbench.c
- tjunittest.c
- tjutil.c
- tjutil.h
- transupp.c
- transupp.h
- turbojpeg-jni.c
- turbojpeg.c
- turbojpeg.h
- wrbmp.c
- wrgif.c
- wrjpgcom.c
- wrppm.c
- wrrle.c
- wrtarga.c