Added util methods to retrieve targeting block / entity directly

[Prunoideae]

Description

Added getTargetBlock and getTargetEntity for HighlightKubeEvent so users can get the targeting block / entities in a convenient way and apply additional logic without ray tracing.

Example Script

ClientEvents.highlight(event => {
    let { player, targetBlock } = event

    if (targetBlock == null || !targetBlock.hasTag("c:ores")) return // So it will only highlight ore blocks

    event.addTargetBlock('gold')
    event.cancelBlockHighlight()
})