write ?consul page? about archiveit hierarchy of accounts -> collections -> crawls

[ndushay]

We will have a single downloader account per achive-it subscription;

each account has multiple collections

each collection has multiple crawls.

[cmharlow]

pass at documenting this and some on the WASAPI account data publication details (if only for later testing / confirming expectations of present data in test account) is here: https://consul.stanford.edu/pages/viewpage.action?pageId=157483820