Update plugin test framework to junit5

Updates the testing infrastructure to use the latest relesae of junit and
leverages the new extension mechanism to create an easy to use testing
framework.  Also adds additional test coverage for several plugins.

game/plugin/logout/test/LogoutTests.kt

@@ -1,19 +1,27 @@
-import org.apollo.game.message.impl.ButtonMessage
-import org.apollo.game.plugin.testing.KotlinPluginTest
-import org.junit.Test
-import org.mockito.Mockito.times
-import org.mockito.Mockito.verify
 
-class LogoutTests : KotlinPluginTest() {
+import io.mockk.verify
+import org.apollo.game.message.impl.ButtonMessage
+import org.apollo.game.model.entity.Player
+import org.apollo.game.plugin.testing.junit.ApolloTestingExtension
+import org.apollo.game.plugin.testing.junit.api.annotations.TestMock
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+
+@ExtendWith(ApolloTestingExtension::class)
+class LogoutTests  {
 
 	companion object {
 		const val LOGOUT_BUTTON_ID = 2458
 	}
 
-	@Test fun `The player should be logged out when they click the logout button`() {
-		player.notify(ButtonMessage(LOGOUT_BUTTON_ID))
+    @TestMock
+    lateinit var player: Player
 
-		verify(player, times(1)).logout()
+	@Test
+    fun `The player should be logged out when they click the logout button`() {
+		player.send(ButtonMessage(LOGOUT_BUTTON_ID))
+
+        verify { player.logout() }
 	}
 
 }