Make views & visibility more generic and consistent

[radumg]

Following the London workshops we organised, a few customers noted that the Analyze nodes for VisiblePoints and ViewsToOutside especially could

• be more generic
• have better naming of ports
• have more clear & useful outputs

Feedback	Node
Input: viewSegment > Target	ViewsToOutside
Name: Use more generic naming.	ViewsToOutside
Internals should be obstructions	ViewsToOutside
Not sure about the score, it is not necessarily a score. It is more like an angle of view or field of view. They assume the score is the percentage of windows that can be seen. Maybe leave the score out of the outputs.	ViewsToOutside
Report how much of the windows they can actually see, in length or area or percentage.	ViewsToOutside
ByLineSegments, are those the windows or the obstructions

[radumg]

Proposed changes

• merge ViewsToOutside & VisiblePoints categories into one : Visibility
• change names of nodes to make sense in this new organisation
• change port names to make more generic and usable, as per feedback above : internals>obstructions, viewsToOutside>viewsToTarget
• change scoring to percentages rather than [0,1] values