Add support for multi-get operation in the Database

[xgreenx]

Oveview

In several places of the codebase we have cases when we need to get multiple values at once. It is faster to do via multi-get operation.

Also, we want to use it for https://github.com/FuelLabs/fuel-core/issues/2023

Definition of done

use multijet instead of iteration and single value.

Implementation details

We want to add support for it into the fuel_storage::StorageInpect trait and use it inside of fuel-vm and fuel-tx.