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/book/usage/runtime_apis.rs

@@ -40,7 +40,7 @@
 //! );
 //! ```
 //!
-//! All valid runtime calls implement [`crate::runtime_api::RuntimeApiPayload`], a trait which
+//! All valid runtime calls implement [`crate::runtime_api::PayloadT`], a trait which
 //! describes how to encode the runtime call arguments and what return type to decode from the
 //! response.
 //!

subxt/src/book/usage/storage.rs

@@ -66,7 +66,7 @@
 //! - `runtime::storage().foo().bar_iter3(u8, bool, u16)`: iterate over all of the entries in the "bar" map under
 //!   a given `u8`, `bool` and `u16` value.
 //!
-//! All valid storage queries implement [`crate::storage::StorageAddress`]. As well as describing
+//! All valid storage queries implement [`crate::storage::AddressT`]. As well as describing
 //! how to build a valid storage query, this trait also has some associated types that determine the
 //! shape of the result you'll get back, and determine what you can do with it (ie, can you iterate
 //! over storage entries using it).
@@ -124,7 +124,7 @@
 //!
 //! For more advanced use cases, have a look at [`crate::storage::Storage::fetch_raw`] and
 //! [`crate::storage::Storage::fetch_raw_keys`]. Both of these take raw bytes as arguments, which can be
-//! obtained from a [`crate::storage::StorageAddress`] by using
+//! obtained from a [`crate::storage::AddressT`] by using
 //! [`crate::storage::StorageClient::address_bytes()`] or
 //! [`crate::storage::StorageClient::address_root_bytes()`].
 //!

subxt/src/book/usage/transactions.rs

@@ -53,7 +53,7 @@
 //! represents any type of data that can be SCALE encoded or decoded. It can be serialized,
 //! deserialized and parsed from/to strings.
 //!
-//! A valid transaction payload is just something that implements the [`crate::tx::TxPayload`] trait;
+//! A valid transaction payload is just something that implements the [`crate::tx::PayloadT`] trait;
 //! you can implement this trait on your own custom types if the built-in ones are not suitable for
 //! your needs.
 //!