Directions API. Url provider

Description

In terms of Navigation for Android exists 2 types of Navigation(Router), it's Offline and Online. Both of them needs Route-URL provider.(Offline and Online are different modules , have own dependency graph and might be used independent).

Online Router's Route URL is provided by MapboxDirections that is a part of services-core library(under the hood is Retrofit(+OkHttp) library)

Problem

Offline Router cannot consume url from services-core because it brings "network" dependencies like Retrofit and OkHttp(they shouldn't be in Offline navigation).
Offline Router has own route-url provider RouteUrl
The main issue here: two classes where the same piece of logic exist.

Solution

• keep service-core library interfaces as it is
• create additional library (like router-url-provider) that depends on service-directions-model and (if java doesn't have clever approach for creating url) additional java library

How dependency tree looks now

Suggestion

Pros

router-url-provider might be used independently on service-core 👍

cc @mapbox/navigation-android @mapbox/maps-android @mapbox/navigation-api

Comienza comparando Router.kt, MapboxDirections.java y la implementación interna de RouteUrl.kt; después, inspecciona los grafos de dependencias de los módulos mostrados en el issue. Determina cómo se puede consumir de forma independiente el comportamiento compartido de las URL de rutas sin incorporar dependencias de red en Offline Router; se considera terminado cuando ambos tipos de router puedan usar el provider compartido mientras las interfaces de service-core permanezcan sin cambios.