added travel folder and airports (#2601)

* added travel folder and airports. I often find myself creating these seeds and would love the addition to Faker to help save time on travel apps. This commit contains us and eu airports by size and iata code

* Update test/faker/travel/test_faker_airports.rb

Co-authored-by: Stefanni Brasil <stefannibrasil@gmail.com>

* Update lib/faker/travel/airport.rb

Co-authored-by: Thiago Araujo <thd.araujo@gmail.com>

* Update lib/faker/travel/airport.rb

Co-authored-by: Thiago Araujo <thd.araujo@gmail.com>

* added continent/region argument to generator, this works by name || iata code

* fixed white space issue for rubocop

* refactored airport md to 2 methods name or iata, both take arguments size && region, provided some rescue for method, and added generator to README

Co-authored-by: Stefanni Brasil <stefannibrasil@gmail.com>
Co-authored-by: Thiago Araujo <thd.araujo@gmail.com>

README.md

@@ -238,6 +238,9 @@ gem 'faker', :git => 'https://github.com/faker-ruby/faker.git', :branch => 'main
 ### Fantasy
   - [Faker::Fantasy::Tolkien](doc/fantasy/tolkien.md)
 
+### Travel
+  - [Faker:Travel::Airport](doc/travel/airport.md)
+
 ### Creature
   - [Faker::Creature::Animal](doc/creature/animal.md)
   - [Faker::Creature::Bird](doc/creature/bird.md)

doc/travel/airport.md

@@ -0,0 +1,6 @@
+# Faker::Travel::Airport
+
+```ruby
+Faker::Movies::Travel::Airport.name('large', 'united_states') #=> "Los Angeles International Airport"
+Faker::Movies::Travel::Airport.iata('large', 'united_states') #=> "LAX"
+```

lib/faker/travel/airport.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+module Faker
+  class Travel
+    class Airport < Base
+      class << self
+        ##
+        # Produces random Airport by name and takes arguments for size and region
+        #
+        # @param size [String] airport size, united_states has large, or medium, or small, european_union has large, or medium
+        #
+        # @param region [String] airport region, currently available -> united_states or european_union
+        #
+        # @retrun [String]
+        #
+        # @example
+        # Faker::Travel::Airport.name('large', 'united_states') => "Los Angeles International Airport"
+        #
+        # @faker.version next
+        def name(size, region)
+          fetch("airport.#{region}.#{size}")
+        rescue I18n::MissingTranslationData
+          p 'valid arguments are size && region -> US has size large medium small, EU has size large medium -- united_states || european_union'
+        end
+
+        ##
+        # Produces random Airport by IATA code and takes arguments for size and region
+        #
+        # @param size [String] airport size, united_states has large, or medium, or small, european_union has large, or medium
+        #
+        # @param region [String] airport region, currently available -> united_states or european_union
+        #
+        # @retrun [String]
+        #
+        # @example
+        # Faker::Travel::Airport.iata('large', 'united_states') => "LAX"
+        #
+        # @faker.version next
+        def iata(size, region)
+          fetch("airport.#{region}.iata_code.#{size}")
+        rescue I18n::MissingTranslationData
+          p 'valid arguments are size && region -> US has size large medium small, EU has size large medium -- united_states || european_union'
+        end
+      end
+    end
+  end
+end