Added TaskService, ltask.[ch]

- cnc's main.c has an example of scheduling tasks
- switched to C11, might go back to C99 if i get the motivation
	to write a windows-specific getTime() implementation

cnc/src/main.c

@@ -1,14 +1,23 @@
 #include <stdio.h>
 
+#include "ltask.h"
 #include "cnc.h"
 
+struct sLaika_taskService tService;
+
+void debugTask(struct sLaika_taskService *service, struct sLaika_task *task, clock_t currTick, void *uData) {
+    printf("hello !\n");
+}
+
 int main(int argv, char **argc) {
     struct sLaika_cnc *cnc = laikaC_newCNC(13337);
 
+    laikaT_initTaskService(&tService);
+    laikaT_newTask(&tService, 2000, debugTask, NULL);
+
     while (true) {
-        if (!laikaC_pollPeers(cnc, 1000)) {
-            LAIKA_DEBUG("no events!\n");
-        }
+        laikaC_pollPeers(cnc, laikaT_timeTillTask(&tService));
+        laikaT_pollTasks(&tService);
     }
 
     laikaC_freeCNC(cnc);