Allow usage of multiple access tokens

[langsmith]

It would be nice to add more flexibility to token management in the Maps SDKs for Android and iOS. More specifically, the ability to switch tokens in order to use multiple Mapbox products with one another.

The current use case that this could solve is using China .cn products with .com products. Mapbox China map styles require a special China access token, but a China token can't load a global style such as Satellite Streets. I'd like to be able to load the China tiles with a China access token and then use a global/.com access token to load Satellite Streets when I click a toggle style button. Right now, the Mapbox singleton object will continue to use the China token for all API calls because that was the first token used.

cc @chriswu42 @suntony @springmeyer @Chaoba @lloydsheng @jmkiley

[tobrun]

Adding this to 7.0 as this could potentially impact public API

[springmeyer]

in the Maps SDKs for Android and iOS.

Re-opening: Is there a plan for iOS? My opinion is that we need parity for this feature to be viable.

[tobrun]

Updating the labels to reflect above

[jmkiley]

On the iOS side, accessToken is already exposed and can be set programmatically. However, I'm not sure about how this behaves with multiple access tokens. Will investigate.

[jmkiley]

👋 Looks like this already works on iOS. However, we do run into an obstacle with switching the MGLMapboxAPIBaseURL, since that is set in the Info.plist. I have opened a ticket to discuss this feature: #13605

[tobrun]

since iOS is covered on this feature request and we have ticketed out tail work. Going to close this one out.