feat: Add StyleSpans support for Polylines

[lenoch0d]

Fixes #307 🦕

• updated google play maps services which support the new feature
• added new Polyline composable with the spans parameter, allowing to specify spans for each segment of points
• I did not extend the existing Polyline composable, because I believe it would be confusing with the color parameter - it doesn't make sense to specify it when we specify Spans for every segment. To not make it confusing, I think we'd need to make it nullable without the default color. However, that would be a braking change.

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[el-qq]

Hi! I wanted to check in and see if you're planning to continue working on it? We're looking forward to potentially incorporating these changes into our project.

[el-qq]

@kikoso Could you please close the PR? (outdated)

[kikoso]

Done! Thanks for the reminder, @el-qq