Issue title: Brouter no more supported in version 3.4.6 ?
 Issue body: Hi,
I just udpated to 3.4.6, and I don't find any more how to choose the routing service. I'm used to Brouter, wich I find superior on bicycle routing calculation and faster than osmand's in-app routing service (I'm speaking about offline routing only).

Is it a strategy choice or an issue ? I didn't find discussions about it in the issues.

Thanks for the work !

Osmand 3.4.6 on LineageOS 14.1 (Android 7.1.2)

 Comments: 
 Comment 0: It seems that now you have to go to `Settings` → `Application profiles` → `Add`, select the profile type and at the `Navigation type` choose BRouter.

At least this is what I had to do to select BRouter for driving (and I didn't find an easier way for this).
 Comment 1: Hello! Yes, in the current version, we disable the ability to change navigation type in the default profiles, you need to create custom to use external services and customized routing.xml.
 Comment 2: Ok thanks, that's working well !
 Comment 3: The problem still exist in version 3.5. It is not possible to select other routing mechanism.
Is this a problem or just a design decision?
 Comment 4: @rgbimport Hello! In 3.5.5 you need to create custom profile and that select Brouter as navigation type. In current nightly builds, you can set navigation type in any profile.
 Comment 5: I see it. Thanks
{'source': 'GithubIssues', 'repo_name_with_owner': 'osmandapp/Osmand', 'issue_id': 480552936, 'repo_stars': 2468.0}