renamed: deployment.lua -> deployment.example.lua ...

deleted:    deployment/README
	modified:   deployment/__main__.py
	modified:   deployment/core/bootstrap.py
	modified:   deployment/core/suite.py
	modified:   deployment/core/task_runner.py
	modified:   deployment/core/tasks.py
	modified:   deployment/core/tests.py
	deleted:    deployment/lib/errors.py
	deleted:    deployment/lib/printer.py
	modified:   deployment/lib/task_types.py
	modified:   deployment/lib/types.py
	modified:   deployment/main.py
	new file:   package.nix
	modified:   shell.nix