examples/in_progress: 2wp_gen, makefile

examples/in_progress/2wp_gen/Makefile

+SHELL=/bin/bash
+REPLAY=why3 replay -L .
+MLW=base choice ho_set ho_rel fn order transfinite game
+
+replay:
+	@exe() { echo "$$0 $$@"; "$$@"; };\
+	for f in $(MLW); do exe $(REPLAY) $$f.mlw; done