added isSkill condition authored by Lxlp's avatar Lxlp
## Description
Whether the distance between the caster and target is within the given range.
Can be a single number, a ranged value (20to40), or >10 <5, etc.
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| distance | d | The distance to match | |
## Examples
```yaml
TargetConditions:
- distance{d=<2}
```
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