Tidy up the REPO !!

[AmalJossy]

I am not an expert at Unity. I just copy-pasted some snippets from here and there to make the app barely work. Can someone

• [ ] Update code to work with latest Unity, Vuforia and Android
• [ ] Restructure the files in a more logical way
• [ ] Remove project specific files for better re-use I would really appreciate if you could add a briefing of what you did