Reinstate "second bosh lite works with 10.245.0.0/19 subnet and 192.168.100.0/24 vm network"

This reverts commit 465f780e57506d608e8c7eceb271540bef90c46e.
change config files in /opt to use right network
change ips in the generated cf-manifest
prepare director has to restart vagrant vm
increase size of api