canary

Update component-init to published component-init-transform (#159)

* nonfunctional change: switch from `wasmtime serve --wasi common` to `wasmtime serve -Scli`

* update dependencies to match component-init

* eliminate dependency on wasm-convert
* for the moment, using my branch of component-init. we should publish
  to crates.io once this is validated.
* update to wasm-tools versions matching component-init
* update wasmtime to latest, not required but just nice to do while
  we're here
* eliminate wasi-common dependency, which is unnecessary

* bindgen: changes to float reprs in wasm-encoder

* changes to wasmtime-wasi crate layout

* swap wasm-convert for wasm-encoder::reencode

* test fixes

* new clippy lint

* component-init was published as component-init-transform