option to run a task immediately

PontCoopScheduler.c

@@ -29,7 +29,11 @@ void schAdd(void (*exec)(void *), void *handle, uint32_t delay, uint32_t period)
     if (tasks[i].exec == NULL) {
       tasks[i].delay = delay;
       tasks[i].period = period;
+      if (delay == 0 && period == 0) {
+        tasks[i].run = 1;
+      } else {
         tasks[i].run = 0;
+      }
       tasks[i].exec = exec;
       tasks[i].handle = handle;
       break;