fix up the arbitrary length multi map methods with new command.AddToCache parameter

Dapper NET40/SqlMapper.cs

@@ -1733,7 +1733,7 @@ static IEnumerable<TReturn> MultiMapImpl<TReturn>(this IDbConnection cnn, Comman
 
             object param = command.Parameters;
             identity = identity ?? new Identity(command.CommandText, command.CommandType, cnn, types[0], param == null ? null : param.GetType(), types);
-            CacheInfo cinfo = GetCacheInfo(identity, param);
+            CacheInfo cinfo = GetCacheInfo(identity, param, command.AddToCache);
 
             IDbCommand ownedCommand = null;
             IDataReader ownedReader = null;

Dapper NET45/SqlMapperAsync.cs

@@ -437,7 +437,7 @@ private static async Task<IEnumerable<TReturn>> MultiMapAsync<TReturn>(this IDbC
 
             object param = command.Parameters;
             var identity = new Identity(command.CommandText, command.CommandType, cnn, types[0], param == null ? null : param.GetType(), types);
-            var info = GetCacheInfo(identity, param);
+            var info = GetCacheInfo(identity, param, command.AddToCache);
             bool wasClosed = cnn.State == ConnectionState.Closed;
             try {
                 if (wasClosed) await ((DbConnection)cnn).OpenAsync().ConfigureAwait(false);