Support "0-to-n" Commands

[gab1one]

Commands in this category only take static input parameters and create n rows.

• The node prototype has the NodeType "Source".

[dietzc]

0-rows to n-rows. Number of columns is irrelevant. That parameters can be set via flow-variables is a general requirement.

[gab1one]

This issue was moved to knime-ip/knip2#17

[dietzc]

why did you move this to knip2? this issue is not image processing specific!