move parfait adapter into parfait ruby

in the future parfait will be coded in some and translated back into
ruby to “adapt”
until then, all ruby code is the adapter

lib/parfait.rb

@@ -14,3 +14,4 @@ require "parfait/layout"
 require "parfait/message"
 require "parfait/frame"
 require "parfait/space"
+require "parfait/symbol_adapter"