created 2 new simpler tests before [a plane cannot land if the airport is full]
plane counting working
is possible to check if airport is full
plane cannot land if airport is full
plane has a flying status when in the air
plane has flying status in the air, can take off and changes status to flying after taking off
added weather.rb as a class and tested in command line
a plane cannot land in the middle of a storm - used method stub