Created new classes to represent a web driver.

Added Examples, clean code

library/test/selenium/src/enum.e

@@ -0,0 +1,37 @@
+note
+	description: "Summary description for {ENUM}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+deferred class
+	ENUM
+
+feature -- Access
+
+	is_valid_state: BOOLEAN
+			-- Is the value of the enumeration valid?
+		do
+			Result := is_valid_value (value)
+		end
+
+	value: INTEGER
+			-- The current value of the enumeration.
+
+	set_value (a_value: INTEGER)
+		require
+			is_valid_value (a_value)
+		do
+			value := a_value
+		end
+
+	is_valid_value (a_value: INTEGER): BOOLEAN
+			-- Can `a_value' be used in a `set_value' feature call?
+		deferred
+		end
+
+invariant
+	is_valid_state
+
+end -- class ENUM
+