All of these: (performance) Prefer prefix ++/-- operators for non-primitive types.
[modules/calib3d/src/fundam.cpp:1049] -> [modules/calib3d/src/fundam.cpp:1049]: (style) Same expression on both sides of '&&'.

Added a writeFormat() method to Algorithm which must be called by the
write() method of derived classes.

- added HAL documentation support
- added documentation to HAL replacement interface
- updated several HAL functions in imgproc module

typo correction

Apple OpenCL framework hasn't OpenGL sharing extension

_sizes can point to internal structure which is destroyed
by release() call

fixes #5876

1) fix multichannel support
2) remove useless bad_value, read value from original Mat directly
3) add more tests
4) fix docs for cvCeil and checkRange

Conflicts:
	modules/core/src/matrix.cpp

related issues: #5423 #5476

- added new functions from core module: split, merge, add, sub, mul, div, ...
- added function replacement mechanism
- added example of HAL replacement library