Expose the `editor` object

Hi there,

Thanks very much for your work; I’ve just started using ng2-ace-editor and I love it!

I had some questions and wondered if this was the correct place to ask; if not could you please direct me to the correct location?

1. As far as I can tell, it’s not possible to access the editor using ng2-ace-editor. Is there a reason for this? It’s quite likely I am mistaken. In my project, we need to access the editor object, so we can extend it. Are you open to exposing the editor object so we can extend it? Here is an example
2. Are you open to contributions? If I was to fork your repo and expose the editor object, would you mind reviewing my PR and consider merging the changes into ng2-ace-editor? If so, do you have any contribution guidelines you’d like contributors to follow?

[fxmontigny]

@oh-wo I have create a new element for you. New version 0.1.0 You can not use ace-editor like a component. https://github.com/fxmontigny/ng2-ace-editor#use-component

@BevanR I have upgraded my documentation 😉

[oh-wo]

Thanks very much @fxmontigny, I will test this out at my first opportunity.