Adding a PHING script

I'm modifying the current folder structure and adding a PHING script to generate the package. This will allow also Windows users to generate the package:

Video of the PHING script:
http://youtu.be/gCw6fmw6fmw

I'm going to merge it by my own to avoid you to have many conflicts because i'm rearranging all the files in the component moving them to /component/admin/. Sorry if this cause any inconvenience in your non pulled code.