elgato-streamdeck 0.2.2

HidApi driver for Elgato Stream Decks
Documentation
# elgato-streamdeck

Library for interacting with Elgato Stream Decks through [hidapi](https://crates.io/crates/hidapi). 
Heavily based on [python-elgato-streamdeck](https://github.com/abcminiuser/python-elgato-streamdeck) and partially on
[streamdeck library for rust](https://github.com/ryankurte/rust-streamdeck).

This library was made as a better designed alternative to streamdeck library for Rust.
I just took code from both of the libraries and made it more so pleasant to use.

## Example

```rust
// Create instance of HidApi
let hid = new_hidapi();

// List devices and unsafely take first one
let (kind, serial) = StreamDeck::list_devices(&hid).remove(0);

// Connect to the device
let mut device = StreamDeck::connect(&hid, kind, &serial)
    .expect("Failed to connect");

// Print out some info from the device
println!(
    "Connected to '{}' with version '{}'",
    device.serial_number().unwrap(),
    device.firmware_version().unwrap()
);

// Set device brightness
device.set_brightness(35).unwrap();

// Use image-rs to load an image
let image = open("no-place-like-localhost.jpg").unwrap();

// Write it to the device
device.set_button_image(7, image).unwrap();
```

## Status

- [x] Convenient to use API for looking up devices, connecting to them and interacting with them
- [x] Reading buttons with async


## Supported Devices

Support of the devices is the same as from libraries above, I only personally tested Original v2. 
I'll just keep updating this library to match upstream libraries.

But as it stands, this library should support following devices:
- Stream Deck Original
- Stream Deck Original V2
- Stream Deck XL
- Stream Deck XL V2
- Stream Deck Mini
- Stream Deck Mini Mk2
- Stream Deck Mk2
- Stream Deck Pedal