Added Talking Clock Example

Added Talking clock example for the D1 Mini (ESP8266) devices.

Updates and Corrections

Fixed the word _zone in the Word100LBT.h library, added #defines to the sketch for CS_PIN, updated library version.

fixed category

fixed error in library.properties

Fixed Errors

Long list of things fixed in this release. For a complete list see issue #5 and #6

added say number example from Mattganis

Additional Example allowing the LBT to say any integer number (from zero to 999,999,999,999) from mattganis
Updated callsign_announce example sketch

Updated to Arduino 1.5 Library Specs

updated to Arduino 1.5 Library Specs