Auto-generate Logger.info, Logger.warn etc based on severityToLevels list
Allow multiple objects in logger's message (using ...values syntax)
Update usages of Logger.log to instead use aforementioned generated calls
Update usages of consecutive Logger.* calls to instead use comma-separated parameters in a single call
Multi-line logger messages are aligned with space padding (as such, to have longer yet pretty messages, you no longer need to use consecutive logger calls)
Close #111
...valuessyntax)