mod_rayo: re-added Makefile for iks helpers unit tests

src/mod/event_handlers/mod_rayo/test_iks/Makefile

+BASE=../../../../..
+
+IKS_DIR=$(BASE)/libs/iksemel
+IKS_LA=$(IKS_DIR)/src/libiksemel.la
+LOCAL_CFLAGS += -I../ -I$(BASE)/libs/iksemel/include 
+LOCAL_OBJS= $(PCRE_LA) $(IKS_LA) main.o ../iks_helpers.o
+LOCAL_SOURCES= main.c 
+include $(BASE)/build/modmake.rules
+
+$(IKS_LA): $(IKS_DIR) $(IKS_DIR)/.update
+	@cd $(IKS_DIR) && $(MAKE)
+	@$(TOUCH_TARGET)
+
+local_all:
+	libtool --mode=link gcc main.o ../iks_helpers.o -o test test_iks.la
+
+local_clean:
+	-rm test