Added Section 3 Level 1 & Level 2 tasks

Let's combine this whole section into one task as well (add `mode=0400`), like you did for combining the various options that needed to be set on `/tmp`, etc.

```
- name: 3.1 - 3.2 Set User/Group Owner on bootloader config (Scored)
    file: >
      path={{ grub_config_path.stdout }}
      owner=root
      group=root
      mode=0400
    sudo: yes
    tags:
      - scored
      - section3.1
      - section3.2
```