added isSkill condition authored by Lxlp's avatar Lxlp
## Description
Checks if the target entity has the given aura
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| aura | auraname, b, buff, buffname, debuff, debuffname, n, name | The name of the aura to check for
## Examples
```yaml
Conditions:
- hasaura{aura=firedebuff} true
```
## Aliases
- [x] hasbuff
- [x] hasdebuff
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