Add SAM UI Demo (#854)

* fix tensor flattening

* send image data back

* sam ui worker example

* SAM example

* resize container

* no need for this

candle-wasm-examples/segment-anything/README.md

@@ -0,0 +1,26 @@
+## Running Segment Anything Example
+
+Here, we provide two examples of how to run Whisper using a Candle-compiled WASM binary and runtimes.
+
+### Vanilla JS and WebWorkers
+
+To build and test the UI made in Vanilla JS and WebWorkers, first we need to build the WASM library:
+
+```bash
+sh build-lib.sh
+```
+
+This will bundle the library under `./build` and we can import it inside our WebWorker like a normal JS module:
+
+```js
+import init, { Model } from "./build/m.js";
+```
+
+The full example can be found under `./lib-example.html`. All needed assets are fetched from the web, so no need to download anything.
+Finally, you can preview the example by running a local HTTP server. For example:
+
+```bash
+python -m http.server
+```
+
+Then open `http://localhost:8000/lib-example.html` in your browser.