[pallet-xcm / pallet-xcm-benchmarks] Improvements

[bkontur]

Relates to: #3464

TODO

• remove usage Currency trait from pallet-xcm / pallet-xcm-benchmarks
• remove usage of pallet_balances from benchmarks and replace with something generic e.g. AssetTransactor or pallet-xcm-benchmarks uses type TransactAsset: frame_support::traits::fungible::Mutate<Self::AccountId>
• pallet_xcm change Currency trait to fungible see type Currency: LockableCurrency
• fix // TODO: correct weights. in on_initialize for VersionDiscoveryQueue
• check set_up_complex_asset_transfer and DeliveryHelper
• move xcm_sender stuff from polkadot-runtime-common somewhere else (and then remove dependency from parachain-system)
• do not use ED as a transferable amount, better some "random" value
• return back verify for teleport_assets which was removed here XCM coretime region transfers #3455

[Szegoo]

#3455 Resolves some of the todos.

[bkontur]

• more issues to check here: XCM Generics Benchmarks Leftovers (TODO) #900