Translations: Composite phasing/6/en

This allows the new Asset Control feature to be used in combination with the Account Control feature when required, the transaction execution being made conditional on satisfying both the Asset Control and Account Control settings. It also allows for example combining the existing by hash or by transaction approval models with by whitelist, by balance, etc, approvals, which enables doing atomic coupling of transactions (including cross-blockchain) even for multisignature accounts (i.e. subject to Account Control), or with assets subject to Asset Control.