Interact with location nodes

[matsoftware]

Background

This PR enables the interaction with the direction boxes added to the scene.

Breaking Changes

The LNToucheDelegate interfaces has been modified to notify the touch event of both an AnnotationNode and a LocationNode, that's represented by the parent of the SCNBox rendered.
The PolylineNode class is enriched with a tag attribute that can be used to identify the touched element.

Meta

• Tied to Version Release(s):

Checklist

• Appropriate label has been added to this PR (i.e., Bug, Enhancement, etc.).
• Documentation has been added to all open, and public scoped methods and properties.
• Changelog has been updated
• Tests have have been added to all new features. (not a requirement, but helpful)
• Image/GIFs have been added for all UI related changed.

Screenshots

[matsoftware]

(Closing the PR for now to do extra local tests)

[Pilot-Marc]

SCNnode already has a name property that appears to be designed for the very purpose of your tag property.

[matsoftware]

Hi @Pilot-Marc, I'm reusing the existing tag property of LocationNode for that. In the delegate method, to interact with the selected node, I'm doing something like this:

    func locationNodeTouched(node: LocationNode) {
        guard let name = node.tag else { return }
        guard let selectedNode = node.childNodes.first(where: { $0.geometry is SCNBox }) else { return }
...

The goal of this PR is to basically pass the identifier when generating multiple polylines.

[Pilot-Marc]

@matsoftware I was working on the same issue, detecting what node I was tapping on, but you beat me to it.

[matsoftware]

@aaronbrethorst / @Pilot-Marc Changelog and README updated

[intere]

@matsoftware - could you resolve the merge conflicts, please?

[intere]

Can you please move this line to the 1.2.2 section (1.2.1 has been released). That section will be visible after you merge with the develop branch.

[matsoftware]

Changes pushed @intere