Central API for easier pluggin development

[ZeroX-DG]

While developing this app we must keep a central API so that we can share it with the plugin developers. For example, when a developer develops a plugin that shows a message dialog he could call something like:

import Boost from 'boost';

Boost.window.showMessageDialog('Hello', 'from plugin', Boost.MessageDialogType.INFO);

I think we should plan out how the API should looks like a write a doc about it.

[Rokt33r]

We definitely need it. Thanks for the nice idea!