WIP: DNM: Update to use text based impacts and description sub-sections

[aaronlippold]

• updated to use text based impacts via CVSS 3.0
• updated to use description sub-sections for rationale, check and fix

Note to implementer:

• we should be able to parse a mixed set of data. i.e. they used numbers for impact in some and some text, they used tags in some and sub-sections in other controls etc.
• check and fix should drop into the normal place
• TBD: all non-default descriptions should be at the end after a new line of the default
• special case: caveat sub-section should be placed both at the end of the results display as well. We can document this in the readme of heimdall (open issue) and heimdall-lite (open-issue) as a way for folks to document results.

Blocked from merge until heimdall and heimdall-lite add the logic to parse both styles.

Fixes #15 #14
mitre/heimdall-lite#44
mitre/heimdall-mongo#72

[rx294]

The age of the PR is causing a lot of merge conflicts ...it might be more time efficient to just do a new PR

[aaronlippold]

Closing this in favor of your new 1.2 update