Provide instance id map for singleton source signals in instanced maps.
Provide instance id map for singleton source signals in instanced maps.

libmapper/libmapper,malloch/libmapper,malloch/libmapper,libmapper/libmapper,radarsat1/libmapper,libmapper/libmapper,malloch/libmapper,radarsat1/libmapper,malloch/libmapper,libmapper/libmapper,malloch/libmapper,radarsat1/libmapper,malloch/libmapper,radarsat1/libmapper,libmapper/libmapper,libmapper/libmapper,radarsat1/libmapper