starting with component unit testing (running on device)

Signed-off-by: Peter Siegmund <developer@mars3142.org>

components/logger/logger.c

@@ -0,0 +1,11 @@
+#include "logger.h"
+
+#include <stdio.h>
+
+int add(int a, int b) {
+  return a + b;
+}
+
+void log_message(const char* message) {
+  printf("%s\n", message);
+}