a) Added the main logging interface which
   allows creating dispatcher and logging messages or events.
   Can't actully log anything yet since the sinks are stubbed out.
b) Made default template be a part of the default
   dispatcher.
c) Updated UNIT test.
d) Some of the calls are stubbed out but they are there
   to indicate where next round of work will be.

This is just a part of the interface,
a beginning. Most likely some of the functions
will be altered but it is a starting point.
For example in future there will be
a way to override some of the parts of the
default template using the application configuration file.
Removed obfuscation of the data types based on
discussion with Simo.