Added all items from CIS Section 7 Levels 1 & 2

https://benchmarks.cisecurity.org/tools2/ubuntu/CIS_Ubuntu_12.04_LTS_Server_Benchmark_v1.0.0.pdf
There's a space here in the CIS doc.

Also, I believe you need to wrap lines which use ansible templates in double-quotes (although it might just be if the line starts with the `{{`).

`line="ALL: {{ tcp_allow | default("ALL") }}"`