as
test:
added some shit
Added database
Merge branch 'entity'
school spec works
working on usecase for addmilesclass
final entity
Merge branch 'entity'

Conflicts:
	lib/hmmc.rb
	lib/hmmc/databases/in_memory.rb
	lib/hmmc/entities/user.rb
	spec/school_spec.rb
adding in create user and login user
Merge remote-tracking branch 'origin' into usecases
Added lib/hmmc/use_cases/get_miles.rb
Added spec/use_cases/get_miles_spec.rb
TODO: Look at whether, when creating a classroom, should the classroom to the school.classrooms array in the CRUD, or keep it in the entity.
Started making create_user_spec.rb but didnt finish, about to merge