add documentation

backend/v3/storage/database/repository/doc.go

@@ -0,0 +1,5 @@
+// Package implements the repositories defined in the domain package.
+// The repositories are used by the domain package to access the database.
+// the inheritance.sql file is me over-engineering table inheritance.
+// I would create a user table which is inherited by human_user and machine_user and the same for objects like idps.
+package repository