Animation from simulation or editing

[WJSchakel]

In order to allow animation of objects both during simulation and during editing, DSOL has already been prepared (animator separate from simulator). The animation objects in OTS now need to become able to deal both with simulation and with editing objects. The basic idea is to have for each animator, using Link as an example:

• LinkAnimation.from(interface LinkData), to be used by any extension.
• LinkAnimation.from(Link), to implement existing functions.
• LinkAnimation.from(EditorLink), to animate editor objects (note: EditorLink is just a stand-in here).

[WJSchakel]

• For all object types, the animation class now contains a nested data interface. For example LaneAnimation.LaneData.
• DefaultAnimationFactory creates mostly anonymous classes to implement this. This needs to change to actual types that wrap the object as a property, such that the underlying object becomes accessible through introspection via the GUI. For this goal the implementations also need toString() with a proper name of the object visible in the GUI. This will be done later when code is better structured in line with issue #64.
• The z-adjustments for drawing order are now located in the data objects. This was in the original objects, which was an ugly solution.
• Detector interface in ots-road no longer functions as a toggle for different detector classes in animation. This is now done by DetectorData in ots-draw. This further separates ots-road from ots-draw.
• DetectorData.Text is similarly used for IDs of different detector types. TrafficLightDetector used to not be able to show its ID, it is now.
• Removed usage of WeightedMeanAndSum in located in ots-base, this now uses ArithmeticMean from djutils.

[WJSchakel]

LaneStructureAnimation and LaneStructureLocatable are left as is. They will be removed in the future when LaneStructure is no longer used.

[WJSchakel]

Nested and anonymous classes in DefaultAnimationFactory have been made separate types in org.opentrafficsim.animation.data.

org.opentrafficsim.draw.DrawLevel is an enum that contains several z-coordinate adjustments for drawing order. They are used throughout the data objects. Underlying objects (Lane, LaneBasedGtu, etc.) are not Locatable without strange fixes for animation.