RouteOptions.toUrl migrate to url library

[RingerJK]

RouteOptions.toUrl is not sensitive to corner cases (if you set to baseUrl URL which is ended on / -> youget an problem with incorrect request)

We need to migrate to URL-library which already applies all corner cases under the hood

mapbox-java/services-directions-models/src/main/java/com/mapbox/api/directions/v5/models/RouteOptions.java

Lines 855 to 866 in 7bc9a68

	public URL toUrl(@NonNull String accessToken) {
	StringBuilder sb = new StringBuilder()
	.append(baseUrl())
	.append("/directions/v5")
	.append(String.format("/%s", user()))
	.append(String.format("/%s", profile()))
	.append(String.format("/%s", coordinates()))
	.append(String.format("?access_token=%s", accessToken))
	.append(String.format("&geometries=%s", geometries()));
	if (alternatives() != null) {
	sb.append(String.format("&alternatives=%s", alternatives()));