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/configMap_test.go

@@ -0,0 +1,17 @@
+package labelstructs_test
+
+import (
+	"github.com/katenary/katenary/internal/generator/labels/labelstructs"
+	"testing"
+)
+
+func TestConfigMapFileFrom(t *testing.T) {
+	ts := "- foo/bar"
+	tc2, _ := labelstructs.ConfigMapFileFrom(ts)
+	if len(tc2) != 1 {
+		t.Errorf("Expected ConfigMapFile to have 1 item, got %d", len(tc2))
+	}
+	if tc2[0] != "foo/bar" {
+		t.Errorf("Expected ConfigMapFile to contain 'foo/bar', got %s", tc2[0])
+	}
+}