public void MapIssuers( string srcIssuerToMap, string tgtIssuerToMap, ref Dictionary<ObjectType, List<Tuple<string, string>>> mapping )
Goes through the datasource and finds all objects that have both srcIssuerToMap and tgtIssuerToMap codes and returns the list of these code mappings based on object type. This is useful if you have one datasource with issuer/codes that you want to populate another datasource with.