Added SCOOP support for WSF.

WSF_SERVICE is deeply changed, and addition of WSF_EXECUTION.
Todo: code cleaning, removing useless things.

examples/debug/src/ewf_debug_execution.e

@@ -0,0 +1,27 @@
+note
+	description: "Summary description for {EWF_DEBUG_EXECUTION}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	EWF_DEBUG_EXECUTION
+
+inherit
+	WSF_EXECUTION
+
+create
+	make
+
+feature -- Execution
+
+	execute
+		local
+			dbg: WSF_DEBUG_HANDLER
+		do
+			response.put_error ("DEBUG uri=" + request.request_uri + "%N")
+			create dbg.make
+			dbg.execute_starts_with ("", request, response)
+		end
+
+end