unpackPoint method
Implementation
List<String> unpackPoint(String compressedPoint) {
final pointPtr = compressedPoint.toNativeUtf8();
final resultPtr = _unpackPoint(pointPtr);
final result = resultPtr.toDartString();
//print("- Response string: $result");
// Free the string pointer, as we already have
// an owned String to return
//print("- Freeing the native char*");
cstringFree(resultPtr);
return result.split(",");
}