* estimate_message_delivery_and_dispatch_fee runtime API

* auto-determine message fees in relay

* remove fee argument from relay calls

* Fix import of weight contant

Co-authored-by: Hernando Castano <[email protected]>

* Add option to relay for sending transfers to Millau chain

* Endow derived accounts on Millau chain

* Update message generator entrypoint script to send transfers

* Use correct command when sending messages

* Send Root messages from Root origin on source chain

* Wrap calls from Root Origin in Sudo Call

* Allow Root to send messages without paying fees

* Use correct variable when sending messages to Rialto

* Print warning if no message type is provided to script.

* Add note mentioning that certain source origins aren't supported yet

* Use correct runtime when initializing header sync

* Remove option to send messages as Root

* Remove endowment of derived Root accounts

* Fix indentation.

Co-authored-by: Tomasz Drwięga <[email protected]>

* Attempt at adding Cross-Chain Transfer Generator

* Add Transfer subcommand for sending messages to Rialto

* Add temp helper script for sending messages

* Remove Message and Lane Ids from Dispatch Event

* Increase transfer amount used by script

* Endow derived Dave account on Rialto with funds

* Update Message generator to send more types of messages

This commit first of all updates the script to use the new CLI
commands for sending messages. Second, it adds messages which are
sent from both Target and Source origins.

* Generate messages from Root origin

* Remove dbg! logs from relayer

* Log AccountId as well as HexId

* Remove Balances logs

* Add InstanceId and MessageId back to Dispatch Event

* Add InstanceId and MessageId types for Apps

* Add missing comment

* Document derived accounts as tests

* Move shared commands to variables

* Add example usage for send_message script

* Add docs to message variants

* Fix Clippy complaint

* relay Rialto messages to Millau

* impl SubmitRialtoToMillauMessage

* fmt

* initialize substrate bridge from relay

* is_halted: false

* initialize using su instead of owner

* Fix wording in comments

Co-authored-by: Hernando Castano <[email protected]>

* Millau messages -> Rialto relay

* prepare for custom race strategy of delivery race

* custom strategy for delivery race

* update TODOs

* add reference to issue 457

* impl reconnect

* clippy

* fix check in test

* fmt

* removed obsolete TODO

* fixed another TODOs

* fmt

* use MAX_UNCONFIRMED_MESSAGES_AT_INBOUND_LANE const from primitives

* Update relays/messages-relay/src/message_lane_loop.rs

Co-authored-by: Hernando Castano <[email protected]>

* added SubstrateMessagesProof typedef

* fix test

* removed comment

* additional_proof_required -> ProofParameters

* typo

* multiline literal

* clippy

* fix typo

* and_then -> await

* update_source_latest_confirmed_nonce

* Update relays/messages-relay/src/message_race_delivery.rs

Co-authored-by: Tomasz Drwięga <[email protected]>

Co-authored-by: Hernando Castano <[email protected]>
Co-authored-by: Tomasz Drwięga <[email protected]>

* Rialto -> Millau headers relay

* removed more constraints

* removed file from other PR

* Update primitives/rialto/src/lib.rs

Co-authored-by: Hernando Castano <[email protected]>

Co-authored-by: Hernando Castano <[email protected]>

* substrate-relay::SubmitMillauToRialtoMessage

* typo

* Update relays/substrate/src/cli.rs

Co-authored-by: Hernando Castano <[email protected]>

Co-authored-by: Hernando Castano <[email protected]>

* substrate-relay: initial commit

* MillauHeaderApi and RialtoHeaderApi

* post-merge fixes + TODOs + compilation