Provide units for return values of canister status

[domwoe]

When running dfx canister status currently only the balance is returned with a unit (cycles). It would be helpful to return all values with units. This would be helpful in particular for the freezing threshold which confuses people a lot.

Furthermore, it would be helpful if we could return the freezing threshold not only in seconds but also in cycles.

[vincent-dfinity]

Done at #4064.