Add DropDatabase configuration setting

God help me...

src/Tgstation.Server.Host/Configuration/DatabaseConfiguration.cs

@@ -29,5 +29,10 @@
 		/// If the database should use direct table creation instead of automatic migrations. Should not be used in production!
 		/// </summary>
 		public bool NoMigrations { get; set; }
+
+		/// <summary>
+		/// If the database should be deleted on application startup. Should not be used in production!
+		/// </summary>
+		public bool DropDatabase { get; set; }
 	}
 }

src/Tgstation.Server.Host/Models/DatabaseContext.cs

@@ -140,6 +140,12 @@ namespace Tgstation.Server.Host.Models
 		{
 			Logger.LogInformation("Migrating database...");
 
+			if (databaseConfiguration.DropDatabase)
+			{
+				Logger.LogCritical("DropDatabase configuration option set! Dropping any existing database...");
+				await Database.EnsureDeletedAsync(cancellationToken).ConfigureAwait(false);
+			}
+
 			var wasEmpty = false;
 			if (databaseConfiguration.NoMigrations)
 			{

src/Tgstation.Server.Host/appsettings.json

@@ -30,6 +30,7 @@
   },
   "Database": {
     "NoMigrations": false,
+	"DropDatabase": false,
     "DatabaseType": "SqlServer",
     "ResetAdminPassword": false,
     "ConnectionString": "Data Source=(local);Initial Catalog=TGS;Integrated Security=True"