Add code quality tool (Codacy / LGTM)

[utilForever]

Software is critical in all aspects of our lives. From entertainment, shopping and dating, to business-critical systems and software where human lives are at stake. And yet preventable bugs are all too frequent. LGTM seeks to address this situation.

• References
  • https://lgtm.com/help/lgtm/lgtm.yml-configuration-file#example-lgtm.yml-file
  • https://github.com/rneatherway/turbo-octo-enigma/blob/master/.lgtm.yml