* Refactor remote_externalities::rpc_api

* try-runtime-cli: Adde `execute-block` subcommand

* Trivial

* Address some comments

* Use required_if & remove header-at usage

* Improve doc

* Update comment

* small tweaks

* add overwrite-code to shared params

* Update utils/frame/try-runtime/cli/src/lib.rs

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* make url a shared param

* add helper for block_at (#9153)

* add helper for block_at

* remove redundant bound

* doc for fn block_at

* Update error message

Co-authored-by: kianenigma <kian@parity.io>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* make remote-ext work with ws and safe RPCs

* Update docs.

* Update utils/frame/remote-externalities/Cargo.toml

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

* Fix test

* Update lock file

* Update utils/frame/remote-externalities/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Fix build again.

* checkpoint, merging the paged rpc now

* revert lifetime stuff

* WIP: remote client init not working

* Small cleanups

* use jsonrpsee alpha.7

* WIP

* Executiing without errors

* Reorg & cleanup

* Trivial cleaning

* Add txpool & keystore extension

* Small cleaning

* More :cleaning

* Flags: page-size, override-code

* WIP

* Apply suggestions from code review

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Remove heap_pages

* Dry code extraction from state

* Formatting

* More formatting

* Add issue todo

* Use jsonrpsee 0.2.0

* Try trigger gitlab

* Fix "block_import_works" test

* fix native_big_block_import_fails_on_fallback test

* fix commit should work

* Rewrite UI tests

* Revert "Rewrite UI tests"

This reverts commit ada7f670f701c21fb399946a3f6918453f537bcb.

* try again with UI

* Use const for legacy heap pages val

* Move parse module to its own file

* Move rpc_api module to its own file

* Apply suggestions from code review

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* trait names: Block, not B

* Corect HEAP_PAGES_TEST_LEGACY export

* Update utils/frame/remote-externalities/src/rpc_api.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Revert test_ext heap_page insert; adjust storage root instead

* Doc comments for try_runtime::cli::Command

* TryRuntime stub

* trailing comma

* Remove unused dev dep in frame-executive

* Improve parse::hash variable name & error index

* Use Result for rpc_api fns

* Richer err messagges

* Remove HEAP_PAGE_TEST_LEGACY

* Update bin/node/executor/tests/basic.rs

Co-authored-by: kianenigma <kian@parity.io>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>