Text rendering issues

[HelloYeew]

Text rendering has been introduced in #29 but it's just an initial implementation. There are still a lot of optimization and some (not some, maybe a lot🥲) needed to be fixed.

• Default font should support all language and weight (Now only support only basic weight and only english since there are only 1 TTF)
• The start point of the text don't respect the SpriteText's Anchor and Origin on first draw
• Add support for multiple font atlases page (Now there are only one page and will return null if the atlas is overflow)