Fix publish of v1.4.0 (#56)

add references

Author: AvitalFineRedis

NRedisTimeSeries.Example/CreateExample.cs

@@ -1,4 +1,5 @@
 using NRedisTimeSeries.DataTypes;
+using NRedisTimeSeries.Commands.Enums;
 using StackExchange.Redis;
 using System.Collections.Generic;
 

NRedisTimeSeries.Example/CreateExampleAsync.cs

@@ -1,4 +1,5 @@
 using NRedisTimeSeries.DataTypes;
+using NRedisTimeSeries.Commands.Enums;
 using StackExchange.Redis;
 using System.Collections.Generic;
 using System.Threading.Tasks;