Examples: Include logging example and tests

[phogue]

Include example on using log files and the plugins own logging directory.

[phogue]

Closing as Procon does not do any logging itself except for events, but even this will probably end up as an option which defaults off. We provide full access to the logs directory and setup a logging location for the plugin, so if they choose to use this logging area they can.

Since it's only a console application logging could be setup globally for Procon to just pipe output to a file. Granted, it's not flexible and will result in a lot of spam, but I can't see a use for huge log files at the present time.