Same as for Route service, you can now specify either json or flatbuffers
as output format for the other services (except Tile service, where it
makes no sense).
* add a multiplier to the matrix
* add rounding
* remove scale_factor restrictions
* clamp for overflow error
* update check to match error message
* enforce clamping on < 0 and increase test coverage
* add an invalid scale_factor value to node tests
* increase test coverage
* changelog
* fix incorrect parameter parsing for node osrm and add tests
* fix boost spirit grammar parsing for annotations
* return NotImplemented when distance annotation is requested for MLD in table plugin
* update docs
* signature changed from void() to void(engine::api::Parameters&)
* performance increase due to use "static const GrammarT" and avoid
construction and destruction of grammars during parsing
* removed code duplication in inherited grammars
* rule unlimited changed to qi::lit
* added rule size_t_
* parser accepts "&geometries=" and "&overview=" and fails at "foo"
instead of "&geometries=foo" and &overview=foo
* added expectations checks for derived grammars
* changed rules qi::list(".") to character rules '.'
