When triaging test failures for SERVER-87165, when turning on block-based testing for the decompress(all) path with handling for interleaved sections, I noticed that support for doubles is not complete.

Specifically I was seeing test failures for cases like this one:

https://github.com/10gen/mongo/blob/3e56d3ac12360fa1bf61a4007ef8b7cbf751446b/src/mongo/bson/util/bsoncolumn_test.cpp#L3892 

And I was hitting an invariant here:

https://github.com/10gen/mongo/blob/3e56d3ac12360fa1bf61a4007ef8b7cbf751446b/src/mongo/bson/util/bsoncolumn_interleaved.cpp#L194 

I think some support for double was accidentally omitted. I also did not catch the omission during review.