Update sqlcmd autosplit regexps for ALTER TABLE ... ALTER
and ALTER TABLE ... DROP
Add GEB tests locking down Studio's acceptance of ALTER TABLE
... ALTER and ALTER TABLE ... DROP
Merge pull request #1768 from VoltDB/ENG-7089-sqlcmd-preparse-alter

Preparsing of ALTER statements by sqlcmd
ENG-7055 modify voltkvqa for security benchmark
Merge pull request #1776 from VoltDB/ENG-7055-benchmark-security-enabled

ENG-7055 modify voltkvqa for security benchmark