anyExeccontract execution failed on Chain B, it can call
_fallbackfunction to send messages back to Chain A.
anyExecuteDAPP receiver contract(Chain B failed) -> anyCall(Chain B) -> SMPC Network -> anyExec(Chain A) ->
anyExecute(DAPP sender contract(Chain A))
function anyFallback(address _to, bytes calldata _data) external;
anyExecutefails on Chain B, the anycall contract would issue another call back to chain A with data including the
anyExecuteexecute normal function or fallback function based on the selector.