feat(refacto): move everything in internal package

This allows to install katenary with `go install` and to clean up the
project folder.

internal/generator/labels/labelstructs/cronJob_test.go

@@ -0,0 +1,25 @@
+package labelstructs
+
+import "testing"
+
+func TestCronJobFrom(t *testing.T) {
+	ts := `
+image: fooimage
+command: thecommand
+schedule: "0/3 0 * * *"
+Rbac: false
+`
+	tc, _ := CronJobFrom(ts)
+	if tc.Image != "fooimage" {
+		t.Errorf("Expected CronJob image to be 'fooimage', got %s", tc.Image)
+	}
+	if tc.Command != "thecommand" {
+		t.Errorf("Expected CronJob command to be 'thecommand', got %s", tc.Command)
+	}
+	if tc.Schedule != "0/3 0 * * *" {
+		t.Errorf("Expected CronJob schedule to be '0/3 0 * * *', got %s", tc.Schedule)
+	}
+	if tc.Rbac != false {
+		t.Errorf("Expected CronJob rbac to be false, got %t", tc.Rbac)
+	}
+}