feature: ability to disable services like selfservice or manage or validate

on the linotp.ini it could be set, which linotp service is to be started:
service.validate, service.manage, service.selfservice or service.openid
This is done by establishing the required routes.

Change-Id: I49215068f1b6ea97049fb9337e439eeefaa01cda
Merge "feature: ability to disable services like selfservice or manage or validate"