- 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/WaifuItem.cs

@@ -0,0 +1,17 @@
+using System;
+
+namespace NadekoBot.Core.Services.Database.Models
+{
+    public class WaifuItem : DbEntity
+    {
+        public int? WaifuInfoId { get; set; }
+        public string ItemEmoji { get; set; }
+        public string Name { get; set; }
+        
+        
+        [Obsolete]
+        public int Price { get; set; }
+        [Obsolete]
+        public int Item { get; set; }
+    }
+}