Move public headers to include dir

PUBLISHED_FROM=2abaf447cc20d765f65c28e5be9c18f26c62f7cb

Author: dimonomid

src/Arduino.h renamed to include/Arduino.h

@@ -7,6 +7,8 @@ platforms: [ cc3200, esp32, esp8266 ]
 
 sources:
   - src
+includes:
+  - include
 
 cdefs:
   ARDUINO: 150