@font-face location management

Would love to be able to declare a @font-face rule in the SVG file. I use nearly all of my Inkscape files online and manually setting the location of custom fonts on my server is a real pain. The ability to manage an internal stylesheet for the SVG or even a way to specify the location of a font would be very useful!

Right now I have to manually add something like this after the <defs> tag using a text editor:
<style>
@font-face { font-family: 'HelveticaNeueLT Std'; src: url('http://url/lib/fonts/HelveticaNeueLT Std.otf'); }
</style>