Restructured code to be an Arduino library

 - Moved code from main.ino to a C++ class in notif.cpp
 - Flatten directory structure to make Arduino compiler happy, will try
to restructure back later
 - Created an example .ino file that displays notifications on an LCD
 - Still have to determine if some of the static ACI variables can be
moved into Class member variables.
 - The class is named Notif, is that clear or is there a better name?
 - Have to still create function hooks for BLE Connect and Disconnect
Expanding Public Functions

 - Added connect/disconnect callbacks
 - Connected the rdy/req variables in the constructor
 - Updated the example to work with new callbacks
Better at reconnecting

 - Add in a Services Changed characteristic to force rediscovery
 - Added in a timer on command_send_enable
Updated the Readme
Merge branch 'Library'
Merge branch 'Library'