Add bin/storage adjust, for adjusting schemata
Ref T1191. Adds a new workflow which can apply schema adjustments.
For now, it only performs database and table collation/charset adjustments. I believe these are extremely safe/minor, because they only affect the default values for newly created columns.
- Ran migration on various database states, database/table changes went through cleanly.
Reviewed By: btrahan
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10595