Move @parity/resolc from js-revive (#296)

- Move npm package from paritytech/js-revive 
- Rename package to `@parity/resolc`

js/emscripten/fixtures/storage.json

@@ -0,0 +1,19 @@
+{
+  "language": "Solidity",
+  "sources": {
+    "fixtures/storage.sol": {
+      "content": "// SPDX-License-Identifier: GPL-3.0\npragma solidity >=0.8.2 <0.9.0;\ncontract Storage {\n uint256 number;\n function store(uint256 num) public { number = num; }\n function retrieve() public view returns (uint256){ return number; }\n}"
+    }
+  },
+  "settings": {
+    "optimizer": {
+      "enabled": true,
+      "runs": 200
+    },
+    "outputSelection": {
+      "*": {
+        "*": ["abi"]
+      }
+    }
+  }
+}