Separate console/file logging

[n8maninger]

Adds additional configuration for controlling logging locations and formats. Closes #176

log:
  level: info # global log level. Defaults to info. Can be overridden per log type
  stdout:
    enabled: true # enable or disable stdout logging. Defaults to true
    level: info # stdout log level. Defaults to the global log level.
    format: human # set the log format. Either "human" or "json". Defaults to "human"
    enableANSI: true # enable or disable stdout log colors. Defaults to false on Windows, true everywhere else
  file:
    enabled: true # enable or disable file logging
    level: info # file log level. Defaults to the global log level.
    format: json # set the log format. Either "human" or "json". Defaults to "json"
    path: /my/logpath/hostd.log # set the log file location. Defaults to hostd.log in the data directory