dev: Add update method to service api. Move to literals for variable, global and default

[jpkrajewski]

Pull Request summary:

• Add update method to service api
• Add update method to transport api
• Move to literals in global , variable and default
• Fix Get returns wrong type: Global[int](option_type=<OptionType.DEFAULT .... ) #827
• Fix create policy-object profile was sent without payload

Description of changes:

[Add more in depth analysis of what changed, provide logs, examples of usage]

Checklist:

• Make sure to run pre-commit before committing changes
• Make sure all checks have passed
• PR description is clear and comprehensive
• Mentioned the issue that this PR solves (if applicable)
• Make sure you test the changes