Updated Wasm3 to v0.5.0

• Update Wasm3 core to v0.4.8
• Add simple Fibonacci example/benchmark
• Memory usage improvements

• Update Wasm3 to the latest version
• Update AssemblyScript to 0.9
• Switch to using cargo for Rust build
• Set "libArchive": false for PlatformIO
• Cleanup examples

Update library to https://github.com/wasm3/wasm3/releases/tag/v0.4.5

• Updated examples and the list of supported devices

• Add memoryLimit
• Update examples

Now runs correctly on ESP32, ESP8266, Particle Photon

Initial release