Add the ability to recognize HTML components and document them in the editor

[darkyelox]

VSCode now supports showing documentation over an html element like <div> and also marks all the NativeScript UI components as unrecognized elements with a red color, it's possible to make this extension to tell to VSC to recognize the ui views as valid HTML elements and show documentation?

Whould be also nice to allow this plugin to let us use the editor like other plugins (for example Angular) so if we write something like nsg-grid it will show us options for an Angular templetate of GridLayout or nsv-grid for VueJS or simply ns-grid for Core NativeScript

[NickIliev]

@darkyelox I am using the NativeScript extension along with this extension (for XML) + this extension (for Angular) and on my side, the VSCode has never marked the NativeScript elements in red.