Other minor changes
- updating error message to be more clear for vm_type class
- updating test_network_format to handle nested files w/ no resources
- updating ports.py to handle hardcoded str_replace param/values
Issue-ID: VVP-342 Signed-off-by: stark, steven <steven.stark@att.com>
Change-Id: I63fcda582fe25dcedca87e874327b7ea56fe6ef3