3.0 release

What's Changed

• Create Knock-Cpp-API-DOC.yaml by @scyth3-c in #4
• .env example and mongosee depend fix by @scyth3-c in #6
• changes por master release 3.0 by @scyth3-c in #7

Full Changelog: https://github.com/scyth3-c/knock-cpp-API/commits/3.0