- 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/Modules/Gambling/Services/PlantPickService.cs

@@ -19,7 +19,7 @@ using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using NadekoBot.Modules.Administration;
+using NadekoBot.Db;
 using Image = SixLabors.ImageSharp.Image;
 using Color = SixLabors.ImageSharp.Color;