Recover transaction pool on light client (#3833)

* recover tx pool on light client

* revert local tests fix

* removed import renamings

* futures03::Future -> std::future::Future

* Update core/transaction-pool/graph/src/error.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* replace remove_from_ready with remove_invalid

* avoid excess hashing

* debug -> warn

* TransactionPool + BasicTransactionPool

* pause future tx reject when resubmitting

* bump impl_version to make CI happy

* and revert back local test fixes

* alter doc to restart CI

* Transaction::clone() -> Transaction::duplicate()

* transactions -> updated_tranasctions

* remove explicit consensus-common ref

* ::std:: -> std::

* manual set/unset flag -> calling clusore with given flag value

* removed comments

* removed force argument

* BestIterator -> Box<Iterator>

* separate crate for TxPool + Maintainer trait

* long line fix

* pos-merge fix

* fix benches compilation

* Rename txpoolapi to txpool_api

* Clean up.

* Finalize merge.

* post-merge fix

* Move transaction pool api to primitives directly.

* Consistent naming for txpool-runtime-api

* Warn about missing docs.

* Move  abstraction for offchain calls to tx-pool-api.

* Merge RPC instantiation.

* Update cargo.lock

* Post merge fixes.

* Avoid depending on client.

* Fix build

substrate/.maintain/common.sh

@@ -1,21 +0,0 @@
-#!/usr/bin/env bash
-
-ROOT=`dirname "$0"`
-
-# A list of directories which contain wasm projects.
-SRCS=(
-	"core/executor/wasm"
-	"node/runtime/wasm"
-	"node-template/runtime/wasm"
-	"core/test-runtime/wasm"
-)
-
-# Make pushd/popd silent.
-
-pushd () {
-	command pushd "$@" > /dev/null
-}
-
-popd () {
-	command popd "$@" > /dev/null
-}

substrate/.maintain/update.sh

@@ -1,29 +0,0 @@
-#!/usr/bin/env bash
-
-# This script assumes that all pre-requisites are installed.
-
-set -e
-
-PROJECT_ROOT=`git rev-parse --show-toplevel`
-source `dirname "$0"`/common.sh
-
-export CARGO_INCREMENTAL=0
-
-# Save current directory.
-pushd .
-
-cd $ROOT
-
-for SRC in "${SRCS[@]}"
-do
-  echo "*** Updating and building wasm binaries in $SRC"
-  cd "$PROJECT_ROOT/$SRC"
-
-  cargo update
-  ./build.sh "$@"
-
-  cd - >> /dev/null
-done
-
-# Restore initial directory.
-popd