create rubyx dir and move previous vool_compiler there

test/mains/test_arm.rb

@@ -39,7 +39,7 @@ module Mains
     def compile(input , file , scp)
       Risc.machine.boot
       puts "Compiling test/#{file}.o" if DEBUG
-      Vool::VoolCompiler.ruby_to_binary( "class Space;def main(arg);#{input};end;end" )
+      Vool::RubyXCompiler.ruby_to_binary( "class Space;def main(arg);#{input};end;end" )
       writer = Elf::ObjectWriter.new(Risc.machine)
       writer.save "test/#{file}.o"
       object_file = "/tmp/#{file}.o"