Incremental fill method

Incremental method Initialization
DG_HANDLE InitIncremental(int Start, int Step, int UseEach, int CycleLength)
'Start' is a first value of the sequence.
'Step' will be added at each iteration.
'UseEach' means how many times generated value will be used before add 'Step' value.
'CycleLength' defines after what number of iterations current value will be reinitialized by 'Start' value. 0 means no cycle.

Generate value
char* IncrementalValue(DG_HANDLE handle)

string IncrementalValue(int handle)