Add a configuration file and apply configuration in code

[akshualy]

Resolves #3

Changes:

• Added ruamel.yaml package to parse YAML files
• Moved all output to a centralized alune-output folder. This folder now holds logs, adb RSA keys and the config.
• Added a class method to the traits enum to define default traits dynamically
• Created a config class that loads config.yaml, which is able to self-update with the help of a version number in it
• User-entered config values will be sanitized/checked
• Added code and config for
  • The terminal log level, the log file output will always happen at DEBUG
  • The adb port
  • The traits the bot will purchase
• Fixed a return statement indentation issue in the version check
• Bumped version - I'm honestly not sure how we want to bump versions. Do we just follow semantic? I'm happy to bump minor instead of patch.

I also added a wiki page about the ADB port.