Added Remotery profiler

[ohlidalp]

https://github.com/Celtoys/Remotery is a neat tool which displays CPU usage in real time. So far I only covered the main thread because physics thread caused glitches - I'll look into it later.

How to use:

• Build with USE_REMOTERY
• Launch the viewer webpage (index.html) from BUILDDIR/_deps/remotery-src/vis
• Play the game

The below screenshot is "Simple test terrain" with "DAF Semi truck", under Debug (= OGRE runs also in Debug - rendering is slower)