Allow user to control console

I currently intentionally have some providers as optional, so I often get console warnings from constate about the provider not being provided.
```typescript
if (isDev && value === NO_PROVIDER) {
// eslint-disable-next-line no-console
console.warn("[constate] Component not wrapped within a Provider.");
}
```
I would like to hide them for my use-case. I'd recommend the feature be "fixed" by allowing the user to add their own console object, then it would be up to the user to filter this specific message.

```typescript
import constate, { useConsole } from 'constate';
import log from 'loglevel';

const constateLogger= log.getLogger('constate');
constateLogger.setLevel(log.levels.ERROR);
useConsole(constateLogger)

const [Provider, hook] = constate(.....);
```