Merge pull request #162 from bytecodealliance/pch/scaffold_host_p1

scaffold out preview 1 support

Author: pchickey

Cargo.lock

@@ -8,6 +8,7 @@ members = [
     "verify",
     "host",
     "test-programs",
+    "test-programs/command-tests",
     "test-programs/wasi-tests",
     "test-programs/reactor-tests",
     "wasi-common",
@@ -45,6 +46,7 @@ system-interface = { version = "0.25.1", features = ["cap_std_impls"] }
 wit-bindgen = { version = "0.4.0", default-features = false }
 ipnet = "2" # TODO: Move to cap_std::ipnet instead, when that's released.
 wasmtime = { git = "https://github.com/bytecodealliance/wasmtime", rev = "299131ae2d6655c49138bfab2c4469650763ef3b", features = ["component-model"] }
+wiggle = { git = "https://github.com/bytecodealliance/wasmtime", rev = "299131ae2d6655c49138bfab2c4469650763ef3b" }
 
 [dependencies]
 wasi = { version = "0.11.0", default-features = false }