Investigate if we can update the ec2 tag 'Name' to use the 'guid'

[jwmatthews]

Currently when we look at the ec2 web console we see instances with names of:
'bastion', 'master1'.

I'd like to see if we can update the tag 'name' with '{guid}-{name}'

So for example, assume my "guid: jwm0710ocp4a" I would want to see:
'jwm0710ocp4a-bastion'
'jwm0710ocp4a-master1'

[pranavgaikwad]

This is possible. We will need to make a few changes in AgnosticD config.

Here's a PR I opened on my fork which adds an extra variable custom_instance_name_suffix to specify a suffix to instance names -

pranavgaikwad/agnosticd#7