Automatically configure a "root" project.

[brad-jones]

I think it would be a nice addition to automatically configure a root project.
And then you can buy into the "project" api when and if required.

For example this is what I originally started with, which of course did not work.

import { project, script, ScriptMode } from '@imba/runner';

script('ping-serial', function(script) {
    script.describe(`Pings googles dns servers, one after the other.
    Example usage: yarn imba run ping-serial
    `);
    script.mode(ScriptMode.Series);
    script.run('ping1');
    script.run('ping2');
});

script('ping-parallel', function(script) {
    script.describe(`Pings googles dns servers, at the same time.
    Example usage: yarn imba run ping-parallel
    `);
    script.run('ping1');
    script.run('ping2');
});

script('ping1', function(script) {
    script.cmd('ping -c 4 8.8.8.8');
});

script('ping2', function(script) {
    script.cmd('ping -c 4 8.8.4.4');
});

At the very least I think the README should make mention of the fact that at least one project MUST be defined.

[davidkudera]

Hello and sorry, I didn't notice your issue.

I actually wanted to register root automatically (#4), but then I had a huge problem with it - I had to exclude the root in all scripts, except the one where I wanted to use it. But that was only in about 5% of all tasks, so I decided to not include root automatically (you would have to remember it all the time when you'll be writing new scripts).

But definitelly a nice cache with the minimum number of projects.