* v0.50.0: Integrate frame-decode, redo storage APIs and break up Error. (#2100)
* WIP integrating new frame-decode and working out new storage APIS
* WIP: first pass adding new storage things to subxt-core
* Second pass over Address type and start impl in Subxt
* WIP new storage APIs
* WIP New storage APIs roughly completed, lots of errors still
* Remove PlainorMap enum; plain and map values now use same struct to simplify usage
* Begin 'fixing' errors
* WIP splitting errors and tidying payload/address traits
* Get subxt-core compiling
* Small fixes in subxt-core and remove metadata mod
* subxt-core: cargo check --all-targets passes
* Fix test
* WIP starting to update subxt from subxt-core changes
* WIP splitting up subxt errors into smaller variants
* WIP errors: add DispatchError errors
* Port new Storage APIs to subxt-core
* cargo check -p subxt passes
* Quick-fix errors in subxt-cli (explore subcommand)
* fmt
* Finish fixing codegen up and start fixing examples
* get Subxt examples compiling and bytes_at for constants
* Add some arcs to limit lifetimes in subxt/subxt-core storage APIs
* A little Arcing to allow more method chaining in Storage APIs, aligning with Subxt
* Update codegen test
* cargo check --all-targets passing
* cargo check --features 'unstable-light-client' passing
* clippy
* Remove unused dep in subxt
* use published frame-decode
* fix wasm-example
* Add new tx extension to fix daily tests
* Remove unused subxt_core::dynamic::DecodedValue type
* Update book to match changes
* Update docs to fix more broken bits
* Add missing docs
* fmt
* allow larger result errs for now
* Add missing alloc imports in subxt-core
* Fix doc tests and fix bug getting constant info
* Fix V14 -> Metadata transform for storage & constants
* Fix parachain example
* Fix FFI example
* BlockLength decodes t ostruct, not u128
* use fetch/iter shorthands rather than entry in most storage tests
* Fix some integration tests
* Fix Runtime codegen tests
* Expose the dynamic custom_value selecter and use in a UI test
* Update codegen metadata
* Tidy CLI storage query and support (str,str) as a storage address
* Add (str,str) as valid constant address too
* Show string tuple in constants example
* Via the magic of traits, avoid needing any clones of queries/addresses and accept references to them
* clippy
* [v0.50] update scale-info-legacy and frame-decode to latest (#2119)
* bump scale-info-legacy and frame-decode to latest
* Remove something we don't need in this PR
* Fully remove unused for now dep
* [v0.50] Convert historic metadata to subxt::Metadata (#2120)
* First pass converting historic metadatas to our subxt::Metadata type
* use published frame-decode
* fmt and rename legacy metadata macro
* Enable legacy feature where needed in subxt_metadata so it compiles on its own
* Use cargo hack more in CI and fix subxt-metadata features
* Add tests for metadata conversion (need to optimise; some too expensive right now
* Address performance and equality issues in metadata conversion testing
* fmt
* fmt all
* clippy
* Fix a doc link
* Test codegen and fixes to make it work
* Remove local frame-decode patch
* bump frame-decode to latest
* [v0.50.0] Allow visiting extrinsic fields in subxt_historic (#2124)
* Allow visiting extrinsic fields
* fmt
* Don't use local scale-decode dep
* Clippy and tidy
* Extend 'subxt codegen' CLI to work with legacy metadatas
* Simplify historic extrinsics example now that AccountId32s have paths/names
* clippy
* clippy
* clippy..
* Allow visiting storage values, too, and clean up extrinsic visiting a little by narrowing lifetime
* Try to fix flaky test
* Add custom value decode to extrinsics example
* Remove useless else branch ra thought I needed
* Simplify examples
* Prep to release v0.0.5 (#2126)
James Wilson