Document process for proposing new statistics/reports to Achilles

[chrisknoll]

There is interest in the community to add new queries/statistics/reports to Achilles, but not a lot of information about how this should be done.

Propose new wiki pages to guide through this process, possibly with videos.

[vojtechhuser]

Well, the main issue for this is support for v4 and v5. And how to best do it via GitHub

[vojtechhuser]

If a suggesting person is capable of implementing it, most effective would be to propose a code change via github and "code master" would approve the merge with master. We need freedom for people to pick analysis_id. (next available number in the number space is fine)