build: update project tooling

[NoNameProvided]

This PR:

• updates .gitignore file to exclude common OS generated files
• updates the year in the license
• configures TS and Jest with more modern settings
• adds Prettier (formatting has not been done as it would cause conflict with every PR)
• adds Husky and lint-staged for auto-formatting during commits (new code additions become well formatted)
• updates CI configs to
  • run lint, format, test, build in different tasks for faster feedback
  • removes Travis in favor of GH Actions
  • adds support for auto-deploying GH releases

In a separate PR I also need to add some documentation about:

• how make a release
• commit and PR naming schemes
• some other possible tooling information

[saulotoledo]

This setting will create a big diff on the next PR, because most of the tabulations on the code is defined as 4 spaces. Should we change it now?

[NoNameProvided]

Yes, I know. I did not run prettier for this reason. We should clean up the PRs and only autoformat after.

[saulotoledo]

LGTM.

[github-actions]

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