Converts Adobe Color Tables to `.pal` files.
```bash
cargo install act2pal
act2pal -i input.act -o output.pal
```
```rust,ignore
use act2pal::Palette;
let act = std::fs::read("input.act")?;
let pal = Palette::from_act(&act)?;
std::fs::write("output.pal", pal.to_string())?;
```