- NadekoBot class renamed to Bot

- Implemented grpc based coordinator. Supports restarting, killing single or all shards, as well as getting current shard statuses. (Adaptation of the one used by the public bot)
- Coord is setup via coord.yml file
- Methods from SelfService which deal with shard/bot restart etc have been moved to ICoordinator (with GrpcRemoteCoordinator being the default implementation atm)
- Vastly simplified NadekoBot/Program.cs

src/NadekoBot/Db/Extensions/WaifuExtensions.cs

@@ -1,11 +1,9 @@
-
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.EntityFrameworkCore;
 using NadekoBot.Core.Services.Database;
 using NadekoBot.Core.Services.Database.Models;
-using NadekoBot.Migrations;
 using NadekoBot.Db.Models;
 
 namespace NadekoBot.Db