Build wabt to wasm32-wasi with wasi-sdk, and run in browser!

Prerequest:

• WSL 2 / Linux / macOS
• CMake
• wasi-sdk
• Node.js / npm

export WASI_SDK_PATH=/opt/wasi-sdk

git clone https://github.com/toyobayashi/wasi-wabt
cd wasi-wabt

chmod +x ./fetch.sh
chmod +x ./build.sh
./fetch.sh
./build.sh

npm install
npm start