Initial split of the modules

NadekoBot.Core/Services/Impl/RedisCache.cs

@@ -0,0 +1,43 @@
+using StackExchange.Redis;
+using System.Threading.Tasks;
+
+namespace NadekoBot.Services.Impl
+{
+    public class RedisCache : IDataCache
+    {
+        private ulong _botid;
+
+        public ConnectionMultiplexer Redis { get; }
+        private readonly IDatabase _db;
+
+        public RedisCache(ulong botId)
+        {
+            _botid = botId;
+            Redis = ConnectionMultiplexer.Connect("127.0.0.1");
+            Redis.PreserveAsyncOrder = false;
+            _db = Redis.GetDatabase();
+        }
+
+        public async Task<(bool Success, byte[] Data)> TryGetImageDataAsync(string key)
+        {
+            byte[] x = await _db.StringGetAsync("image_" + key);
+            return (x != null, x);
+        }
+
+        public Task SetImageDataAsync(string key, byte[] data)
+        {
+            return _db.StringSetAsync("image_" + key, data);
+        }
+
+        public async Task<(bool Success, string Data)> TryGetAnimeDataAsync(string key)
+        {
+            string x = await _db.StringGetAsync("anime_" + key);
+            return (x != null, x);
+        }
+
+        public Task SetAnimeDataAsync(string key, string data)
+        {
+            return _db.StringSetAsync("anime_" + key, data);
+        }
+    }
+}