prefetch maven

prefetch maven

* call maven install function
* maven install function installs from file in /vagrant

Jenkins will be modified to point to this pre-installed maven.  This
will eliminate many problems caused by an inability to fetch common
files.

Another solution would be to host a caching proxy within Vexxhost and
set the http_proxy and https_proxy environment variables to use this
host.

Change-Id: I76d1f3c2526b45dbe0fa4b2a17d3e30d434092ce
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>