[Misc] Metaprogramming attempt

### Why?

Currently, we have to keep creating new classes for each endpoint that spacex api launches

These new classes are ***very** similar to each other

This is an attempt to avoid writing the main classes.

While this undeniably comes with the downsides of metaprogramming, I am wondering if we can alleviate some of that pain by continuing to write the individual specs and updating the readme file.

lib/spacex/models.rb

@@ -1,8 +1,13 @@
 module SPACEX
   module V4
-    autoload :Capsules, 'spacex/v4/capsules'
-    autoload :Company, 'spacex/v4/company'
-    autoload :Cores, 'spacex/v4/cores'
-    autoload :Rockets, 'spacex/v4/rockets'
+    CLASS_NAMES = %w[Capsules Company Cores Rockets].freeze
+    CLASS_NAMES.each do |class_name|
+      SPACEX::V4.const_set(class_name, Class.new do |class_name|
+        def self.info(id = nil, _query = {})
+          api_name = self.to_s.gsub("SPACEX::V4::", "").downcase
+          SPACEX::BaseRequest.info("#{api_name}/#{id}", nil, 'v4')
+        end
+      end)
+    end
   end
 end

lib/spacex/v4/base.rb

@@ -0,0 +1,4 @@
+module SPACEX
+  module V4
+  end
+end

spec/spacex/v4/cores_spec.rb

@@ -20,7 +20,8 @@
           'last_update',
           'launches',
           'serial',
-          'id'
+          'id',
+          'status'
         )
       end
     end