adding tentative support for pi-spi and i2c modules

Author: jmstriegel

raspbian-addons/home/coder/coder-dist/coder-base/package.json

@@ -13,6 +13,8 @@
 		"bcrypt": "0.7.4",
 		"connect": "*",
 		"cookie": "*",
-		"gpio": "*"
+		"gpio": "*",
+		"i2c": "*",
+		"pi-spi": "*"
         }
 }