Dumped code from the wasm2cretonne repo.

Integrated wasm test suite translation as cretonne test

Fixes #146.
Fixes #143.

lib/wasm/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "cretonne-wasm"
+version = "0.0.0"
+authors = ["The Cretonne Project Developers"]
+publish = false
+description = "Translator from WebAssembly to Cretonne IL"
+repository = "https://github.com/stoklund/cretonne"
+license = "Apache-2.0"
+
+[dependencies]
+wasmparser = "0.6.1"
+cretonne = { path = "../cretonne" }
+cretonne-frontend = { path = "../frontend" }