CDRIVER-4657 Prohibit extra fields when matching `command` subdocuments (#1297)

* prohibit extra fields in command subdocuments

* call visitor_fn when matching arrays

To check documents in arrays for extra fields.

* copy fle2v2-CreateCollection

from specifications commit 11af5ba6f2fea610940ddc644d3cdef54a697e73

* skip check for on `multi` and `upsert` in updates

* silence scan-build

* Apply suggested comment rewordings

Co-authored-by: Ezra Chung <88335979+eramongodb@users.noreply.github.com>

* document handling of visitor_fn return

* remove unnecessary `void*` cast

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Co-authored-by: Ezra Chung <88335979+eramongodb@users.noreply.github.com>