OptaHaul Node Logger

- Set NODE_ENV env variable to local to get simple logging, otherwise it will be json.
- Set log level by defining LOG_LEVEL env variable or calling Logger.setLogLevel('info'). Default log level is info.
- Get current log levels by calling Logger.isDebugEnabled() etc.

#### Basic usage
``
import { Logger } from '@optahaul/logger';

export class ExampleService {
private static logger = new Logger(ExampleService.name);

exampleFunction() {
ExampleService.logger.info('hi');
}
}
`

#### Typeorm support
`
import { TypeormLogger } from '@optahaul/logger';

const connection = await createConnection({
...options,
logger: new TypeormLogger(),
});
`

#### Publish package
`
npm login
npm ci
npm run build
npm publish
``