Add Copyright notice where missing

Even though I have sole personal copyright on some of the files
being changed here I wanted to acknowledge the source of the files
so that if they are copied this is kept as part of the history.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

Add `git` to dev build option

With this change `git` is added to dev build option packages for
all python templates.  The  reason  behind is that  some modules
installations require cloning source from github

Signed-off-by: Ivana Yovcheva (VMware) <iyovcheva@vmware.com>