move to circleci2

[oroce]

CircleCI will reach its EOL (end of life) in August: https://circleci.com/blog/sunsetting-1-0/

Previously I used it for demo.intellyo.com and back then I was shocked how fast it is, well maybe it got even faster.

Sources I used:

• https://docs.codeclimate.com/docs/circle-ci-test-coverage-example
• https://circleci.com/docs/2.0/env-vars/
• https://circleci.com/docs/2.0/workflows/
• https://github.com/purposeindustries/noble-life/blob/feat/demo.intellyo.com/.circleci/config.yml
• https://github.com/CircleCI-Public/circleci-demo-workflows
• https://discuss.circleci.com/t/unclear-how-to-work-with-user-variables-circleci-provided-env-variables/12810/11
• https://circleci.com/docs/2.0/language-javascript/