Fix drill ability cooldown resetting on world swap

src/main/kotlin/events/ProfileSwitchEvent.kt

@@ -0,0 +1,7 @@
+package moe.nea.firmament.events
+
+import java.util.UUID
+
+data class ProfileSwitchEvent(val oldProfile: UUID?, val newProfile: UUID?) : FirmamentEvent() {
+	companion object : FirmamentEventBus<ProfileSwitchEvent>()
+}