This OverNode allows the implementation of while-loops.
This is a Flow Node, in which the flow is divided into two branches, represented by two output flow ports.
The Condition parameter describes the validity of the condition necessary for the loop to function. While this condition is True, Body will be executed. Inside the body resides all the logic of the loop, described as a collection of joined Nodes.
Once the condition is False, the main branch (upper right port) is resumed, and the loop finishes its computation.
