[sqlite] Add SQLite 3.42.0

Now dist-3.42.0/ is same as dist/ basically.
In the future this could change.

Also moved some top-level version-specific metadata files into dist/ to
reflect that dist/ is currently snapped to 3.42.0.

Test: presubmit
Bug: 322547687
Change-Id: Ifad0207b6f6e521f6e13d491a7d9d5f8b54b89c5
13 files changed