This commit adds the logrus module, and improves logs handling for the
entire program. Error logs are better displayed, and the log level can
be set from the configuration file.
Ref #4
This commit adds an active monitoring of the current public IP. If a
change is detected, then a message is sent to the given Telegram
channel. Add a few tests for the main monitoring logic.
Ref #2
This commit adds a link to a Go Telegram API to send messages to a given
telegram channel provided with a JSON config file. At the moment the
program sends a simple status message to the bot when starting up, but
this allows testing whether the link to Telegram is correctly working.
