* Add Java overloads for each default argument

* Add "fisheye_" prefix for cv::fisheye:: functions and enums

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

* core:OE-27 prepare universal intrinsics to expand (#11022)

* core:OE-27 prepare universal intrinsics to expand (#11022)

* core: Add universal intrinsics for AVX2

* updated implementation of wide univ. intrinsics; converted several OpenCV HAL functions: sqrt, invsqrt, magnitude, phase, exp to the wide universal intrinsics.

* converted log to universal intrinsics; cleaned up the code a bit; added v_lut_deinterleave intrinsics.

* core: Add universal intrinsics for AVX2

* fixed multiple compile errors

* fixed many more compile errors and hopefully some test failures

* fixed some more compile errors

* temporarily disabled IPP to debug exp & log; hopefully fixed Doxygen complains

* fixed some more compile errors

* fixed v_store(short*, v_float16&) signatures

* trying to fix the test failures on Linux

* fixed some issues found by alalek

* restored IPP optimization after the patch with AVX wide intrinsics has been properly tested

* restored IPP optimization after the patch with AVX wide intrinsics has been properly tested

These CMake options are enough:
- `-DWITH_INF_ENGINE=ON`
- `-DIE_PLUGINS_PATH=lib/ubuntu_16.04/intel64`
- `-DENABLE_CXX11=ON` (OpenCV 3.4 only)

- 'if' logic is moved into templates.
- removed unnecessary cv::Mat objects creation.
- fixed inv() test (invA * A == eye)
- added more Matx tests to cover all defined template specializations

Add overloaded cv::PCACompute() that returns also the eigenvalues. Useful for Java and Python OpenCV where PCA is not available.

Function is very fast, so 0.000 ms results are useless.
1000 runs requires 25ms on i7-6700K.

CMake 3.9.0+ is required