Waypoint data source prototype

[JimMargolis]

Adds a prototype WaypointDataSource for Mapbox 10 (v10.19.0). Closes GIOS-1061.

The goal here was to:

1. Figure out how to use CustomGeometrySource
2. Figure out a performant way to fetch and display waypoints

Notes:

• Adds the MarkerDecoration enum from the Gaia GPS TrailTracker project so that we can simulate loading a variety of waypoint images.
• Adds WaypointManager and WaypointDataSource classes. WaypointManager simulates fetching the waypoints from CoreData. WaypointDataSource supplies the waypoints layer to the MapView.
• Adds a Math class with helper methods like getting a bounding box from a Tile ID (copied over from AnnasMath in the TrailTracker project).

Future Work:

• Adding an individual waypoint and prototyping the tap drawer can be done in separate PRs on top of this branch.
• Clustering logic for when the map is zoomed out in an area with many waypoints still needs to be implemented. See WaypointDataSource.swift:84 in TrailTracker for our current implementation.

ScreenRecording_12-06-2024.11-16-42_1.MP4