handle /ibc.core.channel.v1.MsgRecvPacket message type

[elmutt]

Overview

for completeness we eventually want to handle /ibc.core.channel.v1.MsgRecvPacket https://github.com/shapeshift/unchained/pull/478#issuecomment-1218320271

References and additional details

n/a

Acceptance Criteria

n/a

Need By Date

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Screenshots/Mockups

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Estimated effort

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