R1:ff3333548f8a

Create and populate a stopwords table for InnoDB fulltext indexes to use in the future

Summary:
Ref T11741. InnoDB uses a stopwords table instead of a stopwords file.

During `storage upgrade`, synchronize the table from the stopwords file on disk.

Test Plan:
- Ran `storage upgrade`.
- Ran `select * from stopwords`, saw stopwords.
- Added some garbage to the table.
- Ran `storage upgrade`, saw it remove it.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11741

Differential Revision: https…