Improve docker-bench-security json output

[mstemm]

Add a test object for each test performed by the script. Each object has
an id N.M, a desc property describing the test, and the result. Some
tests include additional information about the test e.g. "No TLS
Certificate Found". That can be found in an optional details property of
the test object.

Also, some tests might also return a list of containers, images, users,
etc. This is included in an optional items property of the test object.

Instead of having all test results as top-level objects, break the test
results into sections. Each section has an id + description e.g. "1" and
"Host Configuration". The tests for that section are an array below that
object.

All of the additional json output is implemented by adding new functions
startsectionjson(), endsectionjson(), starttestjson(), and
resulttestjson() that take the id/desc/etc as arguments and print the
proper json properties. It also required adding an "end" test to each
script that calls endsectionjson().

Signed-off-by: Mark Stemm mark.stemm@gmail.com

[GordonTheTurtle]

Please sign your commits following these rules:
https://github.com/moby/moby/blob/master/CONTRIBUTING.md#sign-your-work
The easiest way to do this is to amend the last commit:

$ git clone -b "master" git@github.com:draios/docker-bench-security.git somewhere
$ cd somewhere
$ git rebase -i HEAD~842354528264
editor opens
change each 'pick' to 'edit'
save the file and quit
$ git commit --amend -s --no-edit
$ git rebase --continue # and repeat the amend for each commit
$ git push -f

Amending updates the existing PR. You DO NOT need to open a new one.

[pingoleon108]

any chance to merge those commits, would be great to have a better json.

[konstruktoid]

Could you rebase this @mstemm and I'll continue with testing?

[mstemm]

Sure, rebased. Please take a look.

[konstruktoid]

Thanks and so sorry for the delay on this on @mstemm.

Close #323

[mstemm]

thanks so much for incorporating!