Add policies and licenses

[joaodath]

Add Bugs and Pull Requests Templates Add Security and Contributing policies Add License

[joaodath]

Good Examples

Security

• https://rubyonrails.org/security/

Contributing

• https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/setting-guidelines-for-repository-contributors
• https://github.com/atom/atom/blob/master/CONTRIBUTING.md
• https://github.com/rails/rails/blob/main/CONTRIBUTING.md
• https://github.com/opengovernment/opengovernment/blob/master/CONTRIBUTING.md

Open Source Guide

• https://opensource.guide/starting-a-project/

[joaodath]

Checagem de segurança automatizada no pull request #30 usando o workflow do GitHub CodeQL

[joaodath]

Added license Mozilla Public License, v. 2.0.