FEATURE: add values to expand SAT template file through CLI params

[Masber]

A new feature was recently added to manta to template SAT file with values defined in a session var file. An upgrade to this would be to give the option to overwrite the values files by passing the vars values through the cli

example: manta apply cluster -f my_sat_file_template.yaml -V my_values.yaml --var "config.name="

The command above would overwrite the version value in my_values.yaml to v1.0.3. Then expand the my_sat_file_template.yaml

Having:

# cat my_values.yaml
---
hsm:
  group_name: "zinal_cta"
config:
  name: "test-config"
  version: "v1.0.2"
image:
  version: "v1.0.6"
bos_st:
  name: "deploy-cluster-action"
  version: "v1.0"

And var config.name=new-value

The values in my_values.yaml should update to:

hsm:
  group_name: zinal_cta
config:
  name: new-value
  version: v1.0.0
image:
  version: v1.0.5
bos_st:
  name: deploy-cluster-action
  version: v1.0

[Masber]

implemented in v1.24.0