- Database namespace is now NadekoBot.Db

- Db related code is now in src/NadekoBot/Db
- Finished major part of the db refactor, but many optimizations are left to be made

src/NadekoBot/Db/Models/FeedSub.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace NadekoBot.Core.Services.Database.Models
+{
+    public class FeedSub : DbEntity
+    {
+        public int GuildConfigId { get; set; }
+        public GuildConfig GuildConfig { get; set; }
+
+        public ulong ChannelId { get; set; }
+        public string Url { get; set; }
+
+        public override int GetHashCode()
+        {
+            return Url.GetHashCode(StringComparison.InvariantCulture) ^ GuildConfigId.GetHashCode();
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is FeedSub s
+                && s.Url.ToLower() == Url.ToLower()
+                && s.GuildConfigId == GuildConfigId;
+        }
+    }
+}