Added LCD and DS3234 librarys.

Yet to code up the LCD and DS3234.
Plan is to create the SET TIME and SET GLOBAL TIME methods.
Need to wire up joystick.
Developing LCD and CLOCK
Added main librarys. Next: Get clock working.
ONE FILE SOLUTION

Clock working.
LCD in progress.
Target Time EEPROM Added

Can get or set target time in EEPROM.
Switching display states in CountDown mode.