Implement weld extension to add Faces messages based on method outcome

[yurem]

This extension can help with JSF messages. This will allow to not use java code to add messages. Here is example:

	@FacesMessage({{
			result = "method_result_code_1",
			messages = {
				{severity = SEVERITY_INFO, message="EL_message_1"},
				{severity = SEVERITY_INFO, message="EL_message_2"}
			}}, {
			result = "method_result_code_2",
			messages = {
					{severity = SEVERITY_ERROR, message="EL_message_1"},
					{severity = SEVERITY_ERROR, message="EL_message_2"}
			}}
		})