Test compiled wasm code in test-runtime (#1364)

* Test compiled wasm code in test-runtime

* Drop lazy_static

* Move substrate-executor to dev-dependencies

substrate/node/runtime/wasm/Cargo.lock

@@ -1059,7 +1059,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "sr-sandbox"
+name = "sr-"
 version = "0.1.0"
 dependencies = [
  "parity-codec 2.1.5 (registry+https://github.com/rust-lang/crates.io-index)",