tasks counter width increased to 8 digits

         iterating over combinations is assuring the fixed set is always
         present in all created combinations

SIMPLE algorithm and related scripts for creating&saving the fusion results using all available CTC participant results.

     and reports/complains if it is empty

*  -1.0 default if SEG calculation fails
*  AddNextResult() removes [0] index (lowest SEG)

     subprocess.call() replaces with subprocess.run() that can return stdout of the process

Stops the execution if there are missing parameters.

It creates output folders and job files for all possible input combinations.
Added: Check if output directory exists before creating
Added: Subprocess for calling the Fiji with given parameters