Generate shell scripts as a sequence

For the generated shell scripts in ansiblelaunchserver.py, have them
be generated in numerical order. For example 01.sh, 02.sh, etc. This
will allow us to tell the ordering of the scripts when looking in
'_zuul_ansible/scripts/'

Change-Id: Iba6231242a58a23549c92aa32620d498e05886f8
1 file changed