Added coloured output to Ruby, Python and Lua examples

RubyTest.rb

@@ -107,6 +107,10 @@ module RubyTest
     def self.handle_lower()
         return Proc.new { | win, line |
             Prof::win_show(win, line.downcase)
+            Prof::win_show_red(win, "Red")
+            Prof::win_show_yellow(win, "Yellow")
+            Prof::win_show_green(win, "Green")
+            Prof::win_show_cyan(win, "Cyan")
         }
     end
 end

luatest.lua

@@ -23,6 +23,10 @@ end
 
 local function handle_bracket(win, line)
     prof_win_show(win, "(" .. line .. ")")
+    prof_win_show_red(win, "Red")
+    prof_win_show_yellow(win, "Yellow")
+    prof_win_show_green(win, "Green")
+    prof_win_show_cyan(win, "Cyan")
 end
 
 local function cmd_bracket(line)

python-test.py

@@ -31,6 +31,10 @@ def _cmd_upper(line):
 
 def _handle_upper(win, line):
     prof.win_show(win, line.upper())
+    prof.win_show_red(win, "Red")
+    prof.win_show_yellow(win, "Yellow")
+    prof.win_show_green(win, "Green")
+    prof.win_show_cyan(win, "Cyan")
 
 def prof_init(version, status):
     prof.cons_show("python-test: init, " + version + ", " + status)