Limit dependencies of Turf

[tobrun]

When looking into the dependencies that turf brings downstream, I'm seeing it including sdk-core.
Is this needed? would solely using geojson be sufficient?

+--- com.mapbox.mapboxsdk:mapbox-sdk-turf:4.1.0
|    +--- com.mapbox.mapboxsdk:mapbox-sdk-core:4.1.0
|    |    +--- com.google.code.gson:gson:2.8.5
|    |    +--- com.squareup.retrofit2:retrofit:2.4.0
|    |    |    \--- com.squareup.okhttp3:okhttp:3.10.0 -> 3.11.0 (*)
|    |    +--- com.squareup.retrofit2:converter-gson:2.4.0
|    |    |    +--- com.squareup.retrofit2:retrofit:2.4.0 (*)
|    |    |    \--- com.google.code.gson:gson:2.8.2 -> 2.8.5
|    |    \--- com.squareup.okhttp3:logging-interceptor:3.11.0
|    |         \--- com.squareup.okhttp3:okhttp:3.11.0 (*)
|    \--- com.mapbox.mapboxsdk:mapbox-sdk-geojson:4.1.0 (*)

[tobrun]

@osana can this be picked up?

[tobrun]

bump

[osana]

@tobrun Looks like the only reason sdk-core is included, is to use TestUtils. There should be no problem duplicating this code in the test section