ICA module does not emit an event on success or error of executing ICA transactions

[devashishdxt]

Summary

IBC transfer module emits an event based on the success of IBC transfer here. It'd be great if ICA module also generates similar events when executing transactions so that users can check the events to check if the transaction was successful or not.

Problem Definition

It'd be easy for users to check for events to see if the transaction was successful on the host chain

Proposal

Emit an event indicating transaction execution status from ICA module

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