RFE: support audit container ID records

[rgbriggs]

Add userspace audit tool support for the features introduced by kernel audit container ID support.

• AUDIT_CONTAINER_OP records
• AUDIT_CONTAINER_ID records

See: linux-audit/audit-kernel#90
See: https://github.com/linux-audit/audit-kernel/wiki/RFE-Audit-Container-ID

[rgbriggs]

Posted v3 patchset upstream:
https://www.redhat.com/archives/linux-audit/2018-June/msg00059.html
https://lkml.org/lkml/2018/6/6/626

[rgbriggs]

Posted v4 patchset upstream:
https://www.redhat.com/archives/linux-audit/2018-July/msg00189.html
https://lkml.org/lkml/2018/7/31/862

[rgbriggs]

Posted v5:
https://www.redhat.com/archives/linux-audit/2019-March/msg00036.html
https://lkml.org/lkml/2019/3/15/544

[rgbriggs]

post v6:
https://www.redhat.com/archives/linux-audit/2019-April/msg00062.html
https://lkml.org/lkml/2019/4/9/774

[rgbriggs]

Test case v1 PR: linux-audit/audit-testsuite#83