do not bundle 3rd party imports with the components

[rolandjitsu]

Stencil version:

@stencil/[email protected]

I'm submitting a:

• bug report
• feature request
• support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or https://stencil-worldwide.slack.com

Current behavior:

Currently, any 3rd party imports inside the components will be bundled with the dist for the component.
In some cases we may not want to do this. A good example is rxjs, which is relatively large. And in my specific case, where I use the components I already import rxjs.

Expected behavior:

There should be a way to not bundle 3rd party imports with the components. With rollup this can be done by using a combination of globals and external:

module.exports = {
    globals: {
        'rxjs/Observable': 'Rx'
    },
    external: [
        'rxjs/Observable'
    ]
}

Steps to reproduce:

Related code:

// insert any relevant code here

Other information:

[adamdbradley]

Closing this as a dup of #162 Thanks

[rolandjitsu]

@adamdbradley true, I missed that issue.