* Ensure that table router is always build

This pr ensures that the table router is always build, aka the future is
resolved. This is important, as the table router internally spawns tasks
to handle gossip messages. Handling gossip messages is not only required
on parachain validators, but also on relay chain validators to receive collations.

Tests are added to ensure that the assumptions hold.

* Fix compilation

* Switch to closures

* Remove empty line

* Revert "Remove empty line"

This reverts commit 0d4aaba1780aec1c8d61e1d5dcf7768918af02d9.

* Revert "Switch to closures"

This reverts commit d128c4ecc02c911552a3bfd2142b5a4f7b1338ba.

* Hybrid approach

* Rename test

* Make trait crate local

* fix for offchain phragmen

* Update unix time stuff

* upgrade substrate

* fix telemetry endpoint

* improve msg

* Add transaction source.

* Bump substrate.

* Fix tests.

* Adds a SigningContext type

* Bump spec versions

* Fixes requested changes

* Bump ParachainHost api_version and guard signing_context call

* Improve error message

* If there is no signing_context api use default value

Co-authored-by: Robert Habermeier <[email protected]>

* update new on_initialize syntax

* update substrate

* update spec_version

* Parachains double vote handler initial implementation.

* Make tests test the actual slashing.

* Implement SignedExtension validation of double vote reports.

* Fixes build after merge

* Review fixes

* Adds historical session proofs

* Review fixes.

* Bump runtime spec_version

* Get the session number from the proof

* Check that proof matches session

* Change signature type on DoubleVoteReport

* Adds docs and removes blank lines

* Removes leftover code

* Fix build

* Fix build after a merge

* Apply suggestions from code review

Co-Authored-By: Robert Habermeier <[email protected]>

* Prune ParentToSessionIndex

* Remove a clone and a warning

Co-authored-by: Robert Habermeier <[email protected]>
Co-authored-by: Gavin Wood <[email protected]>

* Remove migration code.

* Bump Substrate

* Bump runtime

* Refactor storage of various modules.

* The real list of claims

* Migration away from opaque maps

* Fix

* Fix for task executor API change

* Copy over files

* Most network tests work

* Fix copyrights

* Strip out unneeded pallets

* Update test-runtime and remove unused network test things

* Upgrade test runtime

* Strip more things out of the test runtime

* Bump kusama impl version