Structure_oM: BarPointLoad requires a new bool property to clarify whether DistanceFromA property is parametric or absolute

[alelom]

What is missing/incorrect?

I had this question asked from an external collaborator -- we need to specify whether the distance is intended as parametric or actual in the attribute description:

BHoM/Structure_oM/Loads/BarPointLoad.cs

Lines 39 to 40 in 95d6557

	[Description("Distance along the Bar between the StartNode and the load position.")]
	public virtual double DistanceFromA { get; set; } = 0;

After confirming with @peterjamesnugent , adapters assume that this is parametric (as it is also for other loads, e.g. BarDifferentialTemperatureLoad.TemperatureProfile). After chatting with @IsakNaslundBh this is assumed as absolute distance in other places, and the general idea is that we do want to retain flexibility for convenience reasons, possibly adding an Engine method to convert between the two.

Therefore, we need to add another boolean property to this object that states whether the distance is to be interpreted as absolute or parametric. I am converting this issue from documentation to feature.