MySQL support for DurableState

[Roiocam]

Motivation

supplement #158, continue solves #56

In #158, we notice that other databases support sequence but MySQL does not, but MySQL does have auto-increment coumn.

I used SELECT AUTO_INCREMENT FROM information_schema.TABLES for retrieving recent automatically generated AUTO_INCREMENT value, but the bigger problem is the sequence number only assigned from MySQL, which can not increase them via SequenceNextValUpdater.