Implement the Ethereum token whitelist logic in Namada #4639

Job	Run time
build-wasm (ubuntu-20.04, v2, 1.11.0)	4m 6s
namada-e2e (ubuntu-20.04, nightly-2023-06-01, 1.7.0, 0.37.2, e2e, 0, namada, v2, namada-release (...	12m 35s
namada-e2e (ubuntu-20.04, nightly-2023-06-01, 1.7.0, 0.37.2, e2e, 1, namada, v2, namada-release (...	20m 36s
namada-e2e (ubuntu-20.04, nightly-2023-06-01, 1.7.0, 0.37.2, e2e, 2, namada, v2, namada-release (...	21m 56s
namada-release (ubuntu-20.04, 1.11.0, ABCI Release build, namada-e2e-release, v2)	10m 46s
unit-and-integration-tests (ubuntu-20.04, nightly-2023-06-01, 1.11.0, ABCI, namada, v2, tendermin...	6m 26s
test-wasm (ubuntu-20.04, v2, nightly-2023-06-01, 1.11.0)	7m 25s
update-wasm	0s
	1h 23m 50s

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