R1:9d0752063e1e

Allow `bin/storage adjust` to adjust table engines

Summary:
Ref T11741. On recent-enough versions of MySQL, we would prefer to use InnoDB for fulltext indexes instead of MyISAM.

Allow `bin/storage adjust` to read actual and expected table engines, and apply adjustments as necessary.

We have one existing bad table that uses the wrong engine, `metamta_applicationemail`. This change corrects that table.

Test Plan:
- Ran `bin/storage upgrade`.
- Saw the adjustment phase apply this change properly:

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