publish libraries to avoid users to have to download them one by one

lib/IRremoteESP8266/src/IRtimer.h

@@ -0,0 +1,20 @@
+// Copyright 2017 David Conran
+
+#ifndef IRTIMER_H_
+#define IRTIMER_H_
+
+#define __STDC_LIMIT_MACROS
+#include <stdint.h>
+
+// Classes
+class IRtimer {
+ public:
+  IRtimer();
+  void reset();
+  uint32_t elapsed();
+
+ private:
+  uint32_t start;
+};
+
+#endif  // IRTIMER_H_