[2.1] SVG support

[Jay721]

I'm curious if there's any easy way to load scalable vector graphics within Ogre to use them with MyGUI? If not, I guess I'll have to convert each SVG to a variety of sizes in PNG format?

[dark_sylinc]

We rely on FreeImage and/or stbimage for loading most of our file formats (and hand-rolled code for DDS, KTX, PVRTC).

AFAIK none of these codecs support SVG, thus we don't either.