Function flic::ffi::flicrs_encode_fli_color256

#[no_mangle]
pub extern "C" fn flicrs_encode_fli_color256(
    opt_prev: *const CRaster, 
    next: *const CRaster, 
    out_buf: *mut c_uchar, 
    max_len: size_t, 
    out_len: *mut size_t
) -> c_uint

Encode a FLI_COLOR256 chunk.