Update Arduino core to v1.0.2

Resolves #10

Author: valeros

platform.json

@@ -46,13 +46,13 @@
       "type": "framework",
       "optional": true,
       "owner": "platformio",
-      "version": "~1.0.1"
+      "version": "~1.0.2"
     },
     "framework-arduinorenesas-portenta": {
       "type": "framework",
       "optional": true,
       "owner": "platformio",
-      "version": "~1.0.1"
+      "version": "~1.0.2"
     },
     "framework-renesas-fsp": {
       "type": "framework",