Add a 'plugins' source set to the game module

Creates a new sourceset for server plugins to support IDE integration
with plugin code.  Additionally moves plugins to game/data/plugins and
contains some gradle related fixes (remove java plugin from root project
and fix exec task dependency).

game/data/plugins/bank/bank.plugin.kts

@@ -0,0 +1,75 @@
+import org.apollo.game.action.DistancedAction
+import org.apollo.game.message.impl.NpcActionMessage
+import org.apollo.game.message.impl.ObjectActionMessage
+import org.apollo.game.model.Position
+import org.apollo.game.model.entity.Npc
+import org.apollo.game.model.entity.Player
+import org.apollo.game.model.inter.bank.BankUtils
+import org.apollo.net.message.Message
+
+val BANK_BOOTH_ID = 2213
+
+/**
+ * Hook into the [ObjectActionMessage] and listen for when a bank booth's second action ("Open Bank") is selected.
+ */
+on { ObjectActionMessage::class }
+        .where { option == 2 && id == BANK_BOOTH_ID }
+        .then { BankAction.start(this, it, position) }
+
+/**
+ * Hook into the [NpcActionMessage] and listen for when a banker's second action ("Open Bank") is selected.
+ */
+on { NpcActionMessage::class }
+        .where { option == 2 }
+        .then {
+            val npc: Npc = Any() as Npc // TODO world.npcRepository.get(index)
+
+            if (npc.id in BANKER_NPCS) {
+                BankAction.start(this, it, npc.position)
+            }
+        }
+
+/**
+ * The ids of all banker [Npcs][Npc].
+ */
+val BANKER_NPCS = setOf(166, 494, 495, 496, 497, 498, 499, 1036, 1360, 1702, 2163, 2164, 2354, 2355, 2568, 2569, 2570)
+
+/**
+ * A [DistancedAction] that opens a [Player]'s bank when they get close enough to a booth or banker.
+ *
+ * @property position The [Position] of the booth/[Npc].
+ */
+class BankAction(player: Player, position: Position) : DistancedAction<Player>(0, true, player, position, DISTANCE) {
+
+    companion object {
+
+        /**
+         * The distance threshold that must be reached before the bank interface is opened.
+         */
+        const val DISTANCE = 1
+
+        /**
+         * Starts a [BankAction] for the specified [Player], terminating the [Message] that triggered.
+         */
+        fun start(message: Message, player: Player, position: Position) {
+            player.startAction(BankAction(player, position))
+            message.terminate()
+        }
+
+    }
+
+    override fun executeAction() {
+        mob.turnTo(position)
+        BankUtils.openBank(mob)
+        stop()
+    }
+
+    override fun equals(other: Any?): Boolean {
+        return other is BankAction && position == other.position
+    }
+
+    override fun hashCode(): Int {
+        return position.hashCode()
+    }
+
+}

game/data/plugins/bank/plugin.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<plugin>
+  <id>bank</id>
+  <version>1</version>
+  <name>Bank</name>
+  <description>Opens the bank interface when players select 'use-quickly' on a bank booth.</description>
+  <authors>
+    <author>Major</author>
+  </authors>
+  <scripts>
+    <script>bank.plugin.kts</script>
+  </scripts>
+  <dependencies />
+</plugin>

game/data/plugins/stub.kt

@@ -0,0 +1,20 @@
+/**
+ * NOTE: This file is a stub, intended only for use within an IDE.  It should be updated
+ * each time [org.apollo.game.plugin.kotlin.KotlinPluginScript] has a new method added to it.
+ *
+ * Until IntelliJ IDEA starts to support ScriptTemplateDefinitions this is
+ * required to resolve references within plugin code.
+ */
+
+import org.apollo.game.model.World
+import org.apollo.game.plugin.PluginContext
+import org.apollo.game.plugin.kotlin.KotlinMessageHandler
+import org.apollo.net.message.Message
+import kotlin.reflect.KClass
+
+val world: World = null!!
+var context: PluginContext = null!!
+
+fun <T : Message> on(type: () -> KClass<T>): KotlinMessageHandler<T> {
+    null!!
+}