When sending extra params, handle types specifically.
When sending extra params, handle types specifically.

Calling lo_message_add with a generic lo_arg was causing problems with
certain types. (e.g. float)

johnty/libmapper,malloch/libmapper,malloch/libmapper,libmapper/libmapper,johnty/libmapper,radarsat1/libmapper,davidhernon/libmapper,radarsat1/libmapper,johnty/libmapper,davidhernon/libmapper-admin2,radarsat1/libmapper,davidhernon/libmapper-admin2,davidhernon/libmapper,davidhernon/libmapper,davidhernon/libmapper-admin2,libmapper/libmapper,libmapper/libmapper,davidhernon/libmapper-admin2,malloch/libmapper,malloch/libmapper,malloch/libmapper,radarsat1/libmapper,johnty/libmapper,radarsat1/libmapper,davidhernon/libmapper-admin2,malloch/libmapper,davidhernon/libmapper,libmapper/libmapper,johnty/libmapper,davidhernon/libmapper,libmapper/libmapper,libmapper/libmapper