Google Maps TMS URL tile support

[arosendorff]

Does any other open PR do the same thing?

#2118
This PR has merge conflicts and has appeared to have stalled.

What issue is this PR fixing?

None

How did you test this PR?

1. Set up a simple tile server serving two different tiles, one with the normal XYZ coordinate, and another with the inverted Y value.
2. Implement with and then without flipY to ensure that the correct tile is displayed, and both in the same place.

This has been tested on iOS simulator, and Android and iOS devices.

[arosendorff]

Hi there, for our app we forked react-native-maps to allow use to display TMS tiles (origin coordinate is at the bottom right instead of the top left) using the Google Maps component and thought it might be useful to merge into the base repo!

[rborn]

LGTM @alvelig @christopherdro 🐽

[christopherdro]

@arosendorff Thank you for this. Any chance you add the recommendation from the other PR to add support for iOS as well? self.tileOverlay.geometryFlipped = YES

[arosendorff]

@christopherdro Yeah I can add that quickly!

[arosendorff]

@alvelig @christopherdro I have updated the PR to include the flip for Apple Maps. Let me know if it all looks good to you!

[sebqq]

hello @arosendorff I can see that your PR has really close to the issue that I'm trying to solve right now. Please, could you take a look at #2733 . Thank you so much!