add an inferSchema npm tasks to the API

[jexp]

the default schema will not be compatible with existing databases (should probably check that, or that the db is empty)

an npm run inferSchema that updates the schema file would be good

[johnymontana]

Initially addressed in dbde3042e9b7c2dd7cf4dd4f43eea620da2a90f8

Leaving this issue open as we need to add encrypted flag and optional database