- Tested new kernel, its OK

different SReD modes now have a parent class.
 All methods are transported to accessory classes.
Two accessory classes were made: CLUtils contains all methods using OpenCL, Utils contains the rest.
Need to test block repetition 3D, and all global repetition kernels, but block repetition 2D is tested.

This refactor makes the code more readable, more organized, and should allow easier CI.

Fixed incongruences with newer methods in older classes.

Classes other than Block repetition and global repetition need improvement.

Added support for 2d block repetition using timeframes

corrected bug where spurious values would be written in borders in kernels

Fixed some bugs. Added unit tests.