Add a property for getting/setting the map's debug option

[jmkiley]

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Fixes: #541

Pull request checklist:

• Briefly describe the changes in this PR.
• Document any changes to public APIs.
• Apply changelog label ('breaking change', 'bug 🪲', 'build', 'docs', 'feature 🍏', 'performance ⚡', 'testing 💯') or use the label 'skip changelog'
• Add an entry inside this element for inclusion in the mapbox-maps-ios changelog: <changelog>Allow users to set the map's MapDebugOptions.</changelog>.

Summary of changes

This PR adds a debugOptions property to MapboxMap. This property is an array of MapDebugOptions. Like prefetchZoomDelta, this property acts a both a getter and a setter. The getter calls the core getDebugOptions method and converts the returned [NSNumber] into [MapDebugOptions]. The setter removes the previous debugOptions value and then sets the debugOptions to the new value.

User impact (optional)

[macdrevx]

Please add some tests.