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"