Implemented font rendering (grayscale only; i.e. non-LCD). FontTexture creates a texture and caches glyphs. Font supports multiple styles/faces, loaded from config file (should probably be loaded via Options instead). TextBlock cache for glyph placement within a string. committer: Diggory Hardy <diggory.hardy@gmail.com>

{MT01}
{misc}
<bool|useThreads=false>
<bool|exitImmediately=false>
<char[]|L10n="en-GB">
<int|logLevel=1>
<double|pollInterval=0.01>

{video}
<bool|noFrame=false>
<bool|resizable=true>
<bool|hardware=false>
<bool|fullscreen=false>
<int|screenW=1280>
<int|windowW=1272>
<int|screenH=1024>
<int|windowH=993>