Added Example 17 - change I2C address

Added example to demonstrate how to change the address on the LCD.

Fix compilation error on ESPxxx

v1.0.8

Update library.properties

v1.0.7

Add missing return value.

v1.0.6

Remove Wire.begin() from begin as best practice to avoid setClock reset and ESPxx crash.

Add enable/disable of system messages. Add discrete control of enable/disable splash.

v1.0.5

Readme typo fix

Adding contrast and backlight control to Ex1 (both I2C and serial)

v1.0.4

Lib ver roll

Adding clear to example 1

v1.0.3

Adding .clear() to first example. Rolling lib version.

Adding Serial example. Fixing lib prop category.

v1.0.2

Correcting lib property category

Adding firmware version example sketch

v1.0.1

lib ver roll

Initial release

v1.0.0

Readme update