Wasm API support

[mssalemi]

Issue: https://github.com/shop/issues-shopifyvm/issues/32

Add support for Wasm API provider in function-runner

This PR adds support for the Wasm API provider in the function-runner

Changes

• Added detection for shopify_function_v0.0.1 provider
• Integrated MessagePack transcoding for modules that use either provider:
  • Converts JSON input to MessagePack before passing to functions
  • Converts MessagePack output back to JSON for display
• added uses_wasm_api_provider helper to check if function is using WASM api

Testing

cargo run -- -f '/Users/mehdisalemi/src/github.com/Shopify/function-runner/tests/fixtures/build/wasm_api_function.merged.wasm' -i 'tests/fixtures/input/wasm_api_function_input.json'