feat(console): expose verbosity level and support logging levels

### Component

Forge

### Describe the feature you would like

It would be handy if forge-std exposed the verbosity level, e.g. `function verbosityLevel() external returns (uint8);`

This is useful when a script has console logging, but wants to adjust the amount of logging according to the verbosity.

e.g.

```
if (vm.verbosityLevel() > 3) console2.log("some debug log here");
```

Even better:

```
console2.debug("some debug log here");
```

Where it only prints the log to the console if the verbosity level is >= 4

I checked `Vm.sol` and didn't find any mention of this, FYI.

### Additional context

_No response_