Fixed detection of instanced_array extension.
Updated readme.
Fixed bad logic.
Cleanup.
Added sanity check for transient buffers.
integration of font and text system
Updated README.
Updated README.
Added makefile for embedded shaders.
rename samples to shorter name
rename font samples main cpp to the project name
restore pen position (did break it for debug previously)
add proper debug comment in the font sample using the text system (good demonstration)
proper debug text message in fontdfs
Remove namespace from font utility classes
fix a typo in fontsdf name
fix typo in debug text
update cube_atlas to bgfx naming style
update font_manager to bgfx coding style
update text_buffer_manager to bgfx naming style