Object Hierarchy

    GObject
    ├── MrpApplication
    ╰── MrpObject
        ├── MrpAssignment
        ├── MrpCalendar
        ├── MrpGroup
        ├── MrpProject
        ├── MrpRelation
        ├── MrpResource
        ╰── MrpTask
    GBoxed
    ├── MrpConstraint
    ├── MrpDay
    ╰── MrpInterval
    GEnum
    ├── MrpTaskSched
    ├── MrpTaskType
    ╰── MrpRelationType