Always show file path in tab

[BaZzz01010101]

Sometimes it's convenient to always have path in the tab. For example when you develop ReactJS components you often use index.js as a root file name in the component folder. And currently if you not open multiple index.js files of different components you don't see the component name in tab title.

So my proposal is to add some options in extension settings for this (like file names template to show path in tabs).