Allow different command line parameters depending on node

[arbertrary]

Suggestion: Let the user specify command line parameters in the application JSON configuration where specific cluster nodes can receive different parameters.

e.g. we have an executable that takes a different calibration file on each node as a command line parameter.
That means the command to be run on the nodes would be

Node 1:
<path/to/shared/drive>/program.exe  P1_A3.mpcdi

Node 2:
<path/to/shared/drive>/program.exe  P2_A3.mpcdi