Use tslint instead of eslint

[mentos1386]

Currently there is used eslint and when running npm run test and checks for .js files. It should check for .ts files and use tslint.

Eslint is also missing as dependency.

https://github.com/troyedwardsjr/phaser3-typescript-webpack/blob/master/package.json#L11

[troyedwardsjr]

I choose to remove it because the primary benefit of linting is to enforce a specific style, usually for multiple developers working on the same project. I would rather not set up a default configuration and make this repository opinionated, as it seems unfitting and overly verbose when creating a boilerplate project which is friendly to new users.