v1.1.3: Component scripts run directly again

Fixed

• Fourteen component scripts could not be started with ./script.sh. They were
  checked in as 100644, so only bash script.sh worked, while the component READMEs
  describe the direct call. The executable bit is restored across aide/, apparmor/,
  auditd/, boot-security/, kernel-hardening/, nftables/, ssh-hardening/, and
  ufw/. Content is unchanged, only the file mode.