Original commit is a5f19f7dd6ae5bc93f73e0417a9e0bfd34c01672

* GMG
* FGD

create `d_fgimg` matrix before cleaning.

converted it to abstract interface

This reverts commit fba72cb6, reversing
changes made to 02131ffb.

This reverts commit 54a202b3.

Conflicts:
	modules/core/doc/command_line_parser.rst
	modules/core/include/opencv2/core/core.hpp
	modules/core/src/cmdparser.cpp
	modules/gpu/perf/main.cpp
	modules/gpu/test/main.cpp
	modules/ts/src/ts_perf.cpp

* No /arch:SSE3 in MSVC
* Warnings fixed or suppressed