added isSkill condition authored by Lxlp's avatar Lxlp
## Description
If the fall speed of the target is within the given range
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| speed | s | The velocity to match | |
## Examples
```yaml
Conditions:
- fallspeed{s=>5} true
```
## Aliases
- [x] fallingspeed
\ No newline at end of file