Added renderer internal whatnot

internal/renderer/renderer.go

@@ -0,0 +1,7 @@
+package renderer
+
+import "fmt"
+
+func render() {
+	fmt.Println("Test")
+}

internal/renderer/renderer_test.go

@@ -0,0 +1,9 @@
+package renderer
+
+import (
+	"testing"
+)
+
+func TestRender(t *testing.T) {
+	t.Error("Something wrong")
+}