renamed array and hash to list and dictionary

Since these are not the ruby classes, we don’t need
the old names. They are misleading.
An Array is a military term, we mean list
And a Hash is an implementation of a Dictionary,
or LookupTable

test/parfait/test_all.rb

@@ -1,2 +1,2 @@
-require_relative "test_array"
-require_relative "test_hash"
+require_relative "test_list"
+require_relative "test_dictionary"

test/parfait/test_dictionary.rb

@@ -3,7 +3,7 @@ require_relative "../helper"
 class TestDictionary < MiniTest::Test
 
   def setup
-    @lookup = ::Parfait::Hash.new
+    @lookup = ::Parfait::Dictionary.new
   end
   def test_list_create
     assert @lookup.empty?

test/parfait/test_list.rb

@@ -3,7 +3,7 @@ require_relative "../helper"
 class TestList < MiniTest::Test
 
   def setup
-    @list = ::Parfait::Array.new_object
+    @list = ::Parfait::List.new_object
   end
   def test_list_create
     assert @list.empty?