0027049: Make non-destructive mode be defined by default in Boolean operations

0027049: Make non-destructive mode be defined by default in Boolean operations

Set non-destructive mode enabled by default in Boolean operation algorithms. It means that shapes will not be modified during any Boolean, Split, GeneralFuse, MakerVolume, CellsBuilder operations.

Since now, in this default mode, the user should not expect any shape from the input arguments being present in the result shape of the operations mentioned above. Some of the input shapes may be passed to the result, in case they are not affected by the operation, but in general, it is better to work through the History mechanism. The shapes replaced by the copies should be obtained through Modified method.

Incomplete: documentation of the algorithms has to be updated accordingly.