define itself is still here for compatibility

drop change:
    template<typename _Tp2> operator Vec<_Tp2, 3>() const;
because it break builds due ambiguous errors

with 'CL=/permissive-'

CMake generated files is a part of target depends list.
Details: `cmake --help-policy CMP0058`

replaced to safe binary compatible 'rep; nop' asm instruction

* add LSD supportsVec4iResult

* LineSegmentDetector.drawSegments: support vector<Vec4i>

* test_lsd.cpp: replace detect()

* test_lsd.cpp: add compareSegments tests

* lsd.cpp: LSD.compareSegments support Vec4i

* test_lsd.cpp: fix trailing whitespace

* Add CPU default extensions loading in IE dnn backend

* Load cpu_extensions for the future Intel's Inference Engine

GDAL message:
- ERROR 1: The BMP file is probably corrupted or too large. Image width = 480