Move contract emitted topics from being an actual topic to be just included into the event body

[athei]

No longer forward the topics that a contract passes as substrate topics ( https://paritytech.github.io/polkadot-sdk/master/frame_system/pallet/struct.Pallet.html#method.deposit_event_indexed ). Those are super costly as each of them incurs a storage write. Instead, just move them into the event body itself by adding a field for the topics here:

polkadot-sdk/substrate/frame/revive/src/lib.rs

Lines 421 to 427 in b2089d8

	ContractEmitted {
	/// The contract that emitted the event.
	contract: H160,
	/// Data supplied by the contract. Metadata generated during contract compilation
	/// is needed to decode it.
	data: Vec<u8>,
	},