clean: move client SPRITE_SIZE out of the framework

[BenDol]

Description

Move client SPRITE_SIZE out of the framework (I use the framework for my server implementation, so I catch these haha)

[mehah]

I gladly accept, but I would like to understand why, since g_drawPool is a singleton, is it just to take the responsibility off config.h?

[BenDol]

Yes, since I use framework for my server implementation any client code i.e. config.h breaks my build. Any framework specific changes should be agnostic to the client sources I think.