Setup Tooling

[manjufy]

Set up the following tooling in the repo

TOOLING

• eslint - for linting
• nyc - for code coverage
• pre-push - for git pre push hook running tests
• ~~winston` - for logging~~

CRITERIA

• eslint should have an opinionated format
• nyc should aim for test coverage of 80% across lines, statements, and branches
• pre-push should run the tests before allowing pushing using git
• winston should be used to replace console logs and all errors should be logged as well. Logs should go to disk.
• integration to CI such as Travis or Circle
• Add Typescript support