Create WASM middleware sample

[codefromthecrypt]

What content needs to be created or modified? wasm middleware was added to 1.8, but recently renovated. Now's the time to make a sample.

Describe the solution you'd like A simple example that shows wasm. As wasm is embedded, this shouldn't need to use a kubernetes cluster. Slim will be easier and more direct. Something like https://github.com/dapr/samples/tree/master/hello-dapr-slim

Where should the new material be placed? https://github.com/dapr/samples/tree/master/hello-wasm

Additional context https://github.com/dapr/components-contrib/pull/1833

[codefromthecrypt]

I'll take over this, ideally when 1.9 is out which should include the update provided https://github.com/dapr/dapr/pull/5169 is merged first.

Otherwise, if someone has advice for creating samples before dapr is released, lemme know.

[codefromthecrypt]

this was closed by https://github.com/dapr/samples/tree/master/hello-wasm