Added new font effects sample along with new MOAIFontEffectsShader added in the shader mgr
Added shaders to the font effects sample and text outline is implemented but has a bug where there is an outline on the left edge of the glyph. Also commented out code in MOAIShaderMgr, will properly add the shader in the future.
Merge branch 'feature/glyph-padding' of https://github.com/patrickmeehan/moai-dev into feature/glyph-padding