Extract FOIA released code into git repository

* Download from:
https://downloads.va.gov/files/FOIA/Software/Patches_By_Application/MHV-MY%20HEALTHEVET/MHV_12_scrubbed.zip
* Move mhv_source/* to /
* Move mhvdocs/* to /
* Delete mhv_maven as it contains binary files that should be downloaded
from Maven repositories.