BRD Light Client Focus

RPC: parity_getBlockReceipts (openethereum#9527)

* Block receipts RPC.

* Use lazy evaluation of block receipts (ecrecover).

* Optimize transaction_receipt to prevent performance regression.

* Fix RPC grumbles.

* Add block & transaction receipt tests.

* Fix conversion to block id.

ci: fix regex 🙄

Increase Gas-floor-target and Gas Cap (openethereum#9564)

+ Gas-floor-target increased to 8M by default

+ Gas-cap increased to 10M by default

Improve P2P discovery (openethereum#9526)

* Add `target` to Rust traces

* network-devp2p: Don't remove discovery peer in main sync

* network-p2p: Refresh discovery more often

* Update Peer discovery protocol

* Run discovery more often when not enough nodes connected

* Start the first discovery early

* Update fast discovery rate

* Fix tests

* Fix `ping` tests

* Fixing remote Node address ; adding PingPong round

* Fix tests: update new +1 PingPong round

* Increase slow Discovery rate
Check in flight FindNode before pings

* Add `deprecated` to deprecated_echo_hash

* Refactor `discovery_round` branching