Cleans up repo setup - eslint/ci on github actions

[michaelfarrell76]

sorry there is a lot here, just cleaning up the repo to match our other open source repo setups: https://github.com/transcend-io/type-utils

Public Changelog

• Updates eslint rules
• Removes tslint
• Removes travis CI
• Adds github actions for tests and depcheck
• Updates vscode config
• Drops package.lock
• Updates to yarn berry