Support new versioned metadata format (#632)

* Start something...

* Parsing via proxy (everything still all-ok)

* Imp[ort order (minor)

* WIP expanding the structure

* Adjust V1 structure

* Parsing seems to do the trick...

* Add CodeHash and Schedule types

* //v0/ -> /v0/

* Update Extrinsic.ts

* Updated with compact outerDispatch, non-throw construction

* v1 to V0 conversion

* Bubble non-magic errors in constructor

* Update e2e after testing them

* Bump version with CHANGELOG  (potentially breaking change)

packages/rpc-provider/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-provider",
-  "version": "0.40.26",
+  "version": "0.41.0",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
@@ -31,7 +31,7 @@
   "dependencies": {
     "@babel/runtime": "^7.2.0",
     "@polkadot/keyring": "^0.33.36",
-    "@polkadot/storage": "^0.40.26",
+    "@polkadot/storage": "^0.41.0",
     "@polkadot/util": "^0.33.36",
     "@polkadot/util-crypto": "^0.33.36",
     "@types/nock": "^9.3.0",

packages/rpc-provider/src/mock/index.ts

@@ -11,7 +11,7 @@ import interfaces from '@polkadot/jsonrpc/index';
 import testKeyring from '@polkadot/keyring/testing';
 import storage from '@polkadot/storage/static';
 import { Codec } from '@polkadot/types/types';
-import metadata from '@polkadot/types/Metadata/static';
+import metadata from '@polkadot/types/Metadata/v0/static';
 import { Header } from '@polkadot/types/index';
 import { bnToU8a, logger, u8aToHex } from '@polkadot/util';
 import { randomAsU8a } from '@polkadot/util-crypto';