added ClearTarget mechanic authored by Lxlp's avatar Lxlp
## Description
Sets the gamemode of the target player. Does nothing if the target is
not a player. Requires the `sync=true` attribute.
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| mode | m | The gamemode to change the target to. | SURVIVAL<!--type:Gamemode-->|
## Examples
```yaml
Skills:
- setgamemode{m=CREATIVE;sync=true} @PlayersInRadius{r=10} ~onSpawn
- ...
```
\ No newline at end of file