Add memory counters and fix makefile

• Add the sensor "memory_counters"
• Fix ld error
• Fix make

src/memory_counters.c

 #include "meminfo_option.h"
-#include <bits/stdint-uintn.h>
+#include "util.h"
 #include <fcntl.h>
 #include <info_reader.h>
 #include <inttypes.h>
@@ -107,3 +107,14 @@ void clean_memory_counters(void *ptr) {
   free(counters->keys);
   free(ptr);
 }
+
+void *show_all_memory_counters(void *none1, size_t none2) {
+  for (unsigned int i = 0; i < NB_COUNTERS; i++) {
+    printf("%s\n", memory_counters[i]);
+  }
+
+  UNUSED(none1);
+  UNUSED(none2);
+  exit(EXIT_SUCCESS);
+  return NULL; /* not reached */
+}