Create a backup on demand

[fulghum]

A Hosted Dolt customer would like to explicitly create a backup in their deployment. In this case, it's because they want to create a new deployment from an existing deployment (with a larger instance size) and they want to backup all the changes they've made today so that the new deployment starts up with them.

It would be ideal if there were a button in the "Backups" tab of the Hosted Dolt Deployment detail page that allowed users to create a new backup and also if there were a way to create a new backup from SQL by calling dolt_backup. If the SQL support is hard for whatever reason, the web UI button would definitely be sufficient.

[tbantle22]

The web UI button should be live early next week

[tbantle22]

You can now manually create a new backup from the Backups tab. Note that we only keep the most recent 14 backups