Add Pharo support

Author: SergeStinckwich

readme.md

@@ -59,6 +59,8 @@ Most of the time you will be interacting with Arduino with a client library on t
 * Flash/AS3
   * [http://funnel.cc](http://funnel.cc)
   * [http://code.google.com/p/as3glue/](http://code.google.com/p/as3glue/)
+* Pharo
+  * [https://github.com/pharo-iot/Firmata](https://github.com/pharo-iot/Firmata)
 * PHP
   * [https://github.com/ThomasWeinert/carica-firmata]()
   * [https://github.com/oasynnoum/phpmake_firmata](https://github.com/oasynnoum/phpmake_firmata)