integration of font and text system
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
convert size_t to uint32_t and int to int32
use ii instead of i in for loop
remove Sleep() in demo function
convert assert to BX_CHECK
Better disable warning for Freetype
convert m_u_xxx to u_xxx for uniforms handle naming.
convert static const to #define
Fix bug involving assert a function call.