Added, House, Tour, City, State and Country models with respective migrations
Created models for rest od database, updated House model to reflect all its relations
Updated migration file for country table
Grouped creation of House and its information on single migration
Added migration for Seller model
Created migration for Seller has House
Modified phone_numbers migration
Modified emails migrations
edited real state agency migration
Changed Seller model and migration
modified logos migration
Ran migrations and created schema file