Add first experiment to use colored console output

Still very basic and needs a lot of improovement.
(And an idea to make it look cool.)

Bases currently on the normal ASCII output. Don't know if that will
really work. We'll see.

lib/rubella/output/colored_console.rb

@@ -0,0 +1,56 @@
+require "rubella/output/ascii"
+
+module Rubella
+  module Output
+
+    # Creates a ascii art representation of the given storage data.
+    # In @data will a ordenary String be stored. Print the String to your
+    # output field and it will shows a nice ascii art graphic.
+    # There are also different ascii art themes available. Including the
+    # possibility to add own themes.
+    # You only need to push an Array within 10 chars for the representation
+    # into the :symbols Hash. Then you can select it with set the used_symbols
+    # variable to you theme name.
+    #
+    # TODO Use setted field_size for representation
+    #
+    class ColoredConsole < ASCII
+
+      # Constructor
+      # Sets the default field_size to 1.
+      # Also sets the used ascii art theme to "shades_ascii". See the
+      # used_symbols= for further information.
+      #
+      # @param data Rubella::Storage
+      # @param field_size int Used chars for one value
+      # @return Rubella::Output::ColoredConsole
+      #
+      def initialize data, field_size = 1
+        super data, field_size
+
+        @symbols = Hash.new
+        @symbols["colored_fields"] = Array.new(10) do |i|
+          color = case i
+            when 0 then 35+196
+            when 1 then 29+196
+            when 2 then 23+196
+            when 3 then 17+196
+            when 4 then 11+196
+            when 5 then 5+196
+            when 6 then 196
+            when 7 then 160
+            when 8 then 124
+            when 9 then 88
+          end
+
+          "\033[38;5;"+color.to_s+";48;5;16m█\033[m"
+        end
+
+        self.used_symbols = "colored_fields"
+      end
+
+
+    end
+
+  end
+end