Macro error messages validating metadata and making suggestions (#1339)

* integrate scale-typegen, remove types mod

* reintroduce default substitutes and derives

* support runtime_types only again

* generating polkadot.rs ok

* update scale-typegen to discrete error types

* scale-typegen-api-changes

* add note about UncheckedExtrinsic in default substitutes

* add resursive attributes and derives

* adjust example where Clone bound recursive

* move scale-typegen dependency to workspace

* expose default typegen settings

* lightclient: Fix wasm socket closure called after being dropped (#1289)

* lightclient: Close wasm socket while dropping from connecting state

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Construct one time only closures

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* testing: Enable console logs for lightclient WASM testing

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Separate wakes and check connectivity on poll_read

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Close the socket depending on internal state

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Revert "lightclient: Separate wakes and check connectivity on poll_read"

This reverts commit 8660940.

* lightclient: Return pending if socket is opening from poll_read

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Close the socket on `poll_close`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Reset closures on Drop to avoid recursive invokation

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* lightclient: Close the socket if not already closing

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* workflows: Install rustup component for building substrate (#1295)

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Command to fetch chainSpec and optimise its size (#1278)

* cli: Add chainSpec command

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli/chainSpec: Move to dedicated module

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Compute the state root hash

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Remove code substitutes

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* artifacts: Update polkadot.json

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* scripts: Generate the chain spec

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Remove testing artifacts

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Fix clippy

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Apply rustfmt

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Introduce feature flag for smoldot dependency

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cli: Rename chain-spec to chain-spec-pruning

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* scripts: Update chain-spec command

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* remove comments and unused args

* Update substrate- and signer-related dependencies (#1297)

* update crypto dependencies, adjust keypair

* add scale_info::TypeInfo derive in some places

* add multi signature derive

* fix lock file

* fix lock file again :|

* adjust to new interface in scale-typegen

* use released scale typegen

* reintroduce type aliases

* introduce type aliases again using scale-typegen

* cargo fmt and clippy

* reconcile changes with master branch

* update polkadot.rs

* bump scale-typgen to fix substitution

* subxt macro, helpful error messages

* adjust ui tests

* fix lock file

* format

* Update macro/src/lib.rs

Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

* incorperate nits

* update Cargo.lock to avoid compatibility issues

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Co-authored-by: Alexandru Vasile <60601340+lexnv@users.noreply.github.com>
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>