added Serilog and file logging (#17)

code/Executable/Program.cs

@@ -3,6 +3,7 @@ using Executable.DependencyInjection;
 var builder = Host.CreateApplicationBuilder(args);
 
 builder.Services.AddInfrastructure(builder.Configuration);
+builder.Logging.AddLogging(builder.Configuration);
 
 var host = builder.Build();