added isSkill condition authored by Lxlp's avatar Lxlp
## Description
Checks is the server is running a specific minecraft NMS version
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| version | sv, v | The version to check for | v1_19_R1_2 |
## Examples
```yaml
Conditions:
- nmsversion{v="v1_19_R1"}
```
## Aliases
- [x] servernms
- [x] nmsversion
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