Create Schema Manager and propagate contexts into the DB calls downstream.
Add checks at controller startup and database init for correct schema version and schema migration dirty bit being set.
* Reorganize the db migration .sql scripts into individual schema version directories and generate the sql httpfs fakeFile accordingly.
* Created a /dev schema version directory to hold db schema updates that have not been finalized.
* Add an 'allow-development-migrations' flag to allow `boundary database init` to be executed even when there are schema updates in /dev.
This can be used in tests to get access to a controller that behaves
just like a dev controller but doesn't require the normal Command bits
(UI, etc).
This can be enhanced over time as needed; for now it's pretty simple but
it's good enough to be used for API tests. A simple project create/read
API test is added as well, which serves to show the programmatic model
(as well as test those functions at the API level).
Todd Knight
Jim
Jeff Mitchell