wizard: prepare a dev env to create the new wizard

Developing a new wizard will require many pull requests and some of them
might even be worked on in parallel. To allow to develop all of that
without interfering with the legacy wizard this commit introduces a new
dev environment alongside an unleash flag when we later want to do the
switch.

To use the new dev en use `npm run stage-beta:experimental` or `npm run
stage-beta:msw+experimental` depending on what you want.

Then unleash flag to toggle in stage and prod is: `image-builder.new-wizard.enabled`

fixes: HMS-2859

src/Components/CreateImageWizardV2/CreateImageWizard.tsx

@@ -0,0 +1,7 @@
+import React from 'react';
+
+const CreateImageWizard = () => {
+  return <></>;
+};
+
+export default CreateImageWizard;