Added new empty shell runtime for `BridgeHubPolkadot` (without bridging stuff)...

Added new empty shell runtime for `BridgeHubPolkadot` (without bridging stuff) for onboarding parachain on Polkadot (#2137)

* Added new empty shell runtime for `BridgeHubPolkadot` (without bridging stuff) for onboarding parachain on Polkadot

* Fix benchmarks/try-runtime

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs frame_system

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_balances

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_multisig

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_xcm

* Fixes

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_session

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_utility

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_timestamp

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs pallet_collator_selection

* ".git/.scripts/commands/bench/bench.sh" pallet bridge-hub-polkadot bridge-hubs cumulus_pallet_xcmp_queue

* PR fixes

* Rebase fix

* Fix new runtime api

* ".git/.scripts/commands/bench/bench.sh" xcm bridge-hub-polkadot bridge-hubs pallet_xcm_benchmarks::fungible

* ".git/.scripts/commands/bench/bench.sh" xcm bridge-hub-polkadot bridge-hubs pallet_xcm_benchmarks::generic

* Updated aura/bootNodes in `create_bridge_hub_polkadot_spec.sh`

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Co-authored-by: command-bot <>