Make subxt-core ready for publishing (#1508)

* Move Extrinsic decoding things to subxt_core and various tidy-ups

* A couple more fixes and fmt

* first pass moving tx logic to subxt_core

* cargo fmt

* fix wasm example

* clippy

* more clippy

* WIP Adding examples and such

* Move storage functionality more fully to subxt_core and nice examples for storage and txs

* Add example for events

* consistify how addresses/payloads are exposed in subxt-core and add runtime API fns

* Add runtime API core example

* fmt

* remove scale-info patch

* Add a little to the top level docs

* swap args around

* clippy

* cargo fmt and fix wasm-example

* doc fixes

* no-std-ise new subxt-core additions

* alloc, not core

* more no-std fixes

* A couple more fixes

* Add back extrinsic decode test

cli/src/commands/explore/pallets/calls.rs

@@ -45,7 +45,7 @@ pub fn explore_calls(
         Usage:
             subxt explore pallet {pallet_name} calls <CALL>
                 explore a specific call of this pallet
-        
+
         {calls}
         "}
     };
@@ -154,7 +154,10 @@ fn mocked_offline_client(metadata: Metadata) -> OfflineClient<SubstrateConfig> {
         H256::from_str("91b171bb158e2d3848fa23a9f1c25182fb8e20313b2c1eb49219da7a70ce90c3")
             .expect("Valid hash; qed");
 
-    let runtime_version = subxt::client::RuntimeVersion::new(9370, 20);
+    let runtime_version = subxt::client::RuntimeVersion {
+        spec_version: 9370,
+        transaction_version: 20,
+    };
 
     OfflineClient::<SubstrateConfig>::new(genesis_hash, runtime_version, metadata)
 }