Home Assistant Command-line Interface: Handling of user-supplied Jinja2 templates

Impact Up to 1.0.0 of home-assitant-cli or hass-cli for short an unrestricted environment was used to handle Jninja2 templates instead of a sandboxed one. The user-supplied input within Jinja2 templates was rendered locally with no restrictions. This gave users access to Python's internals and...