removed id and name property, not every entity has id or/and name
updated docs
Updated Comments
Update Roles and userroles comments
added Mail Entity
Updated Comments
Map Entity simplified and added comments
changed type
Updated Comments
added map city relationship
Renamed Int to Integer
Renamed Bool to Boolean
Refactored City Entity
Updated Comments
update comments in City Resources
Update Comments in Resource Entity
Update Comments in Building Entity
Updated Comments in City
Updated Comments in Building Costs Entity
Mass Refactoring