Lib for the LCD display on mbed lab Board

Dependents:   SprintUSBModemWebsocketTest-LCD-RO iOSAppChat Christmas-LCD led_dimm ... more

Replace deprecated wait_ms() with thread_sleep_for()

mbed 6 has deprecated and removed wait_ms() in the latest version. Swapped wait_ms() for thread_sleep_for() according to mbed docs.

Fork of C12832_lcd, for updating sleep functions per api docs