Create empty console application

Generated by Visual Studio wizard
Add Log4Net library to the project using nuget

via package manager command: "Install-Package log4net"
Create and call logger

Call logger methods while no listeners (e.g. appenders) are configured yet.
Minimally configured log4net to output to the console

This demonstrates minimum configuration file and XmlConfiguration declaration
that initialize the log4net logging system.
Allow command line option to specify number of repetitions

Refactor code so that sample output can be repeated specified number of times.
This allows to continuously output logging statements and makes it easier to
test log output tools such as Log2Console.
Configure OutputDebugString appender

In addition to console appender, add appender that writes to Windows debug
stream. It is very easy to listen to debug output with tools such as
Log2Console or Dbgview
Merge pull request #1 from kblaha/develop