MockConsensusState.root() failed

[yito88]

Crate

IBC modules

Summary of Bug

ibc::mock::client_state::MockConsensusState' s root() function failed. It seems that it isn't implemented yet.

Version

0.6.0

Steps to Reproduce

let height = Height(1, 10);
let header = MockHeader::new(height);
let consensus_state = MockConsensusState(header).wrap_any();
let root = consensus_state.root();  // failed

Acceptance Criteria

We can get the roof from MockConsensusState

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