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

subxt/src/events/events_client.rs

@@ -64,7 +64,7 @@ where
             };
 
             let event_bytes = get_event_bytes(client.backend(), block_ref.hash()).await?;
-            Ok(Events::decode_from(client.metadata(), event_bytes))
+            Ok(Events::decode_from(event_bytes, client.metadata()))
         }
     }
 }

subxt/src/events/mod.rs

@@ -24,5 +24,5 @@ where
     C: OnlineClientT<T>,
 {
     let event_bytes = events_client::get_event_bytes(client.backend(), block_hash).await?;
-    Ok(Events::<T>::decode_from(metadata, event_bytes))
+    Ok(Events::<T>::decode_from(event_bytes, metadata))
 }