Writing Custom Schemata
=======================
The schemas are searched in the path "Resources/Private/Schema" of all
active packages. The schema-filenames must match the pattern
[type].[path].schema.yaml. The type and/or the path can also be
expressed as subdirectories of Resources/Private/Schema. So
Settings/Neos/Flow.persistence.schema.yaml will match the same paths
like Settings.Neos.Flow.persistence.schema.yaml or
Settings/Neos.Flow/persistence.schema.yaml