Add show and hide to div element on modal.component.ts

[AmorimRob]

Hi, Jason,

I was trying to use your component and it worked pretty well on a simple website (without Java, C#, ASP.NET or whatever another web technology). But, When I was trying to integrate angular2-custom-modal in a ASP.NET CORE 2.0 project, the behavior of this component didn't work normally anymore.

To solve this, I added show() to method open and hide() to method close in _directives/modal.component.ts

What do you think about this? Or what do you suggest to do?

Regards, Robson Amorim