added I2C control function (Original program cannot handle I2C constructor)

Dependencies:   TextLCD X_NUCLEO_53L0A1

Fork of HelloWorld_53L0A1 by ST

Revision:
11:15185024bf74
Parent:
10:891e10d3b4a6
Child:
12:e9dedf2d2560
--- a/X_NUCLEO_53L0A1.lib	Tue Aug 22 14:42:10 2017 +0000
+++ b/X_NUCLEO_53L0A1.lib	Mon Dec 11 14:45:22 2017 +0000
@@ -1,1 +1,1 @@
-https://developer.mbed.org/teams/ST/code/X_NUCLEO_53L0A1/#27d3d95c8593
+http://os.mbed.com/teams/ST/code/X_NUCLEO_53L0A1/#1727c86ac63b