`HE_SPRITE_MODULE` define could be optional

Please remove [this line](https://github.com/risolvipro/HEBitmap/blob/main/src/he_api.h#L11) `#define HE_SPRITE_MODULE` to make it optional. Currently I can't build without sprite- symbols, but could be great.

So I can define it in cmake or just directly telling to compiler.

Same for entire Lua-part, but there is more complex thing,