DataLayer events

Fraud0 at the moment creates three DataLayer events:

When a bot is detected, the f0_event_invalid_traffic event is triggered (deprecated):
```
{ event: 'f0_event_invalid_traffic' }
```
When a low quality user is detected, the f0_event_low_quality_traffic event is triggered (deprecated):
```
{ event: 'f0_event_low_quality_traffic' }
```
In all cases, the fraud0 event is triggered, combining both invalid and low quality traffic:
```
{
   event: 'fraud0',
   f0_bot_traffic: 'no',
   f0_traffic_quality: 'standard',
}
```

Traffic Quality can have the following values:

low = low possibility of a conversion

standard = no specific probability

high = a high possibility of a conversion (e.g. user was in checkout process)