Move source file to the root of pkg

I do not yet know how i will need to organize them, if indeed i need to
organize them to a finer granularity than single files, so there is no
point on doing Java-like packages.

cmd/numerus/main.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/jackc/pgx/v4/pgxpool"
 
-	"dev.tandem.ws/tandem/numerus/pkg/router"
+	numerus "dev.tandem.ws/tandem/numerus/pkg"
 )
 
 func main() {
@@ -23,7 +23,7 @@ func main() {
 
 	srv := http.Server{
 		Addr:         ":8080",
-		Handler:      router.NewRouter(dbpool),
+		Handler:      numerus.NewRouter(dbpool),
 		ReadTimeout:  5 * time.Second,
 		WriteTimeout: 10 * time.Second,
 		IdleTimeout:  2 * time.Minute,

pkg/logger.go

@@ -1,4 +1,4 @@
-package logger
+package pkg
 
 import (
 	"log"

pkg/router.go

@@ -1,4 +1,4 @@
-package router
+package pkg
 
 import (
 	"context"
@@ -6,7 +6,6 @@ import (
 	"log"
 	"net/http"
 
-	"dev.tandem.ws/tandem/numerus/pkg/logger"
 	"github.com/jackc/pgx/v4/pgxpool"
 )
 
@@ -47,6 +46,6 @@ func NewRouter(db *pgxpool.Pool) http.Handler {
 		}
 	})
 	var handler http.Handler = router
-	handler = logger.Logger(handler)
+	handler = Logger(handler)
 	return handler
 }