Read API base URL from Info.plist

[1ec5]

If no host is passed into Snapshot(options:accessToken:host:), the fallback hostname should be either api.mapbox.com or api.mapbox.cn depending on the value of MGLMapboxAPIBaseURL in Info.plist:

MapboxStatic.swift/MapboxStatic/Snapshot.swift

Line 114 in 32a32ef

baseURLComponents.host = host ?? "api.mapbox.com"

This would be consistent with how we read the access token out of Info.plist:

MapboxStatic.swift/MapboxStatic/Snapshot.swift

Lines 14 to 15 in 32a32ef

	/// The Mapbox access token specified in the main application bundle’s Info.plist.
	let defaultAccessToken = Bundle.main.object(forInfoDictionaryKey: "MGLMapboxAccessToken") as? String

/ref mapbox/MapboxGeocoder.swift#107
/cc @m-stephen