Pass custom arguments to puppeteer

[floriantraber]

Certain setups may make it necessary to launch puppeteer with different options (e.g. sandbox). Convert-Svg should have some option to pass arguments to puppeteer.

Relevant code:
https://github.com/NotNinja/convert-svg/blob/dc7ad91eb54565217ceea862d1085cad8c14b040/packages/convert-svg-core/src/Converter.js#L269

[neocotic]

@floriantraber I definitely want to add this. I was going to do it initially, but I really wanted to get it stable first. If we go ahead with this, there should be some caveats;

• puppeteer launch options can only be passed to the main API methods (incl. createConverter)
• puppeteer launch options cannot be passed to the instance methods on the Converter instance returned by API#createConverter

This is because each Converter instance holds a reference to the browser (once created for the first time) for reuse in order to optimise performance. I don't see this as an issue, but I just wanted to highlight it.

This would be especially good for those wanting to specify their own executable path, which is why I first wanted to implement this.

For simplicity, I'm thinking that we simply accept these options as a puppeteer field on the exist options parameters for API#convert and API#convertFile and we add a new optional options parameter to API#createConverter that accepts the same.

[neocotic]

Also, I'm not planning on making these options part of the CLI for now. This will be more complicated and I might create a separate issue to track that, which may be part of a future release.

[neocotic]

I have implemented this under PR #27 and it will be included in the 0.3.2 release.

[neocotic]

@floriantraber I've just released v0.3.2 which should include this feature. Please play around with it and let me know how you get on. I wasn't able to fully test it due to the nature of it, so I'm hoping you can let me know how you get on.

[floriantraber]

works flawlessly, thanks