Add a script and an alias for nocha

[maxolofsson1]

Run node --test by using nocha, any additional argument will be passed along to node.

[kristofferjansson]

I'm not entirely convinced about introducing a CLI that wraps node --test.

As we discussed, @maxolofsson1, you can define your defaults in scripts.test in package.json. For a convenient way to run both the entire test suite and individual test files, it's better not to include a glob pattern in package.json. If you omit it, the test runner will automatically pick up all files in the /test directory (see default patterns below). That way, running npm t runs the full suite, and npm t test/path/to/test-file.js runs a single test file.

If there are files in your test directory that shouldn’t be picked up, you can use --test-skip-pattern to exclude them.

By default, Node.js will run all files matching these patterns:
**/*.test.{cjs,mjs,js}
**/*-test.{cjs,mjs,js}
**/*_test.{cjs,mjs,js}
**/test-*.{cjs,mjs,js}
**/test.{cjs,mjs,js}
**/test/**/*.{cjs,mjs,js}