- copy default-initdata.toml in create_tmp_policy_settings_dir, so it can be modified by other tests if needed
- make auto_generate_policy use default-initdata.toml by default
- add auto_generate_policy_no_added_flags, so it may be used by tests that don't want to use default-initdata.toml by default
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>