feat: subaccount can be derived from principal in dfx ledger account-id #3755
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Description
This PR makes it possible to derive the subaccount from a principal in the
dfx ledger account-idcommand.This is useful for NNS voters to validate NNS subnet rental request proposals by deriving the ledger account (controlled by the subnet rental canister's principal and using the proposer's principal as the subaccount) to which the proposer should have transfered the deposit.
How Has This Been Tested?
A new e2e test has been added comparing the account ID returned by DFX against the account ID computed by the SRC for the caller.