Send over position when setting track

Author: duncte123

src/main/kotlin/dev/arbjerg/lavalink/client/IUpdatablePlayer.kt

@@ -9,6 +9,7 @@ import dev.arbjerg.lavalink.client.protocol.TrackUpdateBuilder
 interface IUpdatablePlayer {
     /**
      * Shortcut for setting the encoded track. This will also send any user-data supplied.
+     * Please keep in mind that this will set the position field to the current position of the track.
      *
      * @param track The track to apply to this builder
      *

src/main/kotlin/dev/arbjerg/lavalink/client/PlayerUpdateBuilder.kt

@@ -23,6 +23,8 @@ class PlayerUpdateBuilder internal constructor(private val node: LavalinkNode, p
             userData = track?.userData?.toKotlin().toOmissible()
         ).toOmissible()
 
+        this.position = track?.info?.position.toOmissible()
+
         return this
     }