ETH-794: CrosschainERC677 for the IoTeX chain

[jtakalai]

modified from iotube CrosschainERC20V2

[linear]

ETH-794 Deploy Streamr contracts to IOTEX chain

[CLAassistant]

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1 out of 2 committers have signed the CLA.

✅ jtakalai
❌ CoderZhi
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