RESTBase config spec

* <code>info</code>: https://github.com/wikimedia/service-runner/blob/59017d7c993f2e8326e9031b62202a491ab2fad3/lib/base_service.js#L298-L304
* <code>logging</code>: https://github.com/wikimedia/service-runner/blob/59017d7c993f2e8326e9031b62202a491ab2fad3/lib/master.js#L91
* <code>sevices</code>: https://github.com/wikimedia/service-runner/blob/v2.6.9/lib/worker.js#L148-L175
** <code>conf</code>: service-runner - https://github.com/wikimedia/service-runner/blob/59017d7c993f2e8326e9031b62202a491ab2fad3/lib/worker.js#L162, restbase - https://github.com/wikimedia/restbase/blob/107faa40be0d1e6f8d7d754fe89926863080267e/index.js#L4, hyperswitch - https://github.com/wikimedia/hyperswitch/blob/cf87bd99e12375bf57927312cf82f4a0b97f16b2/lib/server.js#L377
*** <code>port</code>: https://github.com/wikimedia/hyperswitch/blob/4c919a1af373bd8254bf7d83abb05cafe197155d/lib/server.js#L412
*** <code>host</code>: https://github.com/wikimedia/hyperswitch/blob/4c919a1af373bd8254bf7d83abb05cafe197155d/lib/server.js#L413
*** <code>spec</code>: https://github.com/wikimedia/hyperswitch/blob/v0.10.3/lib/router.js#L557-L594
**** <code>paths</code>: https://github.com/wikimedia/hyperswitch/blob/4c919a1af373bd8254bf7d83abb05cafe197155d/lib/router.js#L350-L379
***** <code><pathPattern></code>
****** <code>x-modules</code> https://github.com/wikimedia/hyperswitch/blob/4c919a1af373bd8254bf7d83abb05cafe197155d/lib/router.js#L357-L363
******* <code>path</code>
******* <code>options</code>
********* <code>table</code>: cassandra - https://www.npmjs.com/package/restbase-mod-table-cassandra#configuration