[ntcore] Unify listeners (#4536)

This combines all 4 NT listener APIs (topic, value, connection, and
logging) into a single unified listener API.

ntcoreffi/src/main/native/symbols.txt

@@ -1,37 +1,25 @@
-NT_AddConnectionListener
+NT_AddListener
+NT_AddListenerMultiple
+NT_AddListenerSingle
 NT_AddLogger
-NT_AddPolledConnectionListener
+NT_AddPolledListener
+NT_AddPolledListenerMultiple
+NT_AddPolledListenerSingle
 NT_AddPolledLogger
-NT_AddPolledTopicListener
-NT_AddPolledTopicListenerMultiple
-NT_AddPolledTopicListenerSingle
-NT_AddPolledValueListener
-NT_AddTopicListener
-NT_AddTopicListenerMultiple
-NT_AddTopicListenerSingle
-NT_AddValueListener
 NT_AllocateBooleanArray
 NT_AllocateCharArray
 NT_AllocateDoubleArray
 NT_AllocateFloatArray
 NT_AllocateIntegerArray
 NT_AllocateStringArray
-NT_CreateConnectionListenerPoller
 NT_CreateInstance
-NT_CreateLoggerPoller
-NT_CreateTopicListenerPoller
-NT_CreateValueListenerPoller
+NT_CreateListenerPoller
 NT_DeleteTopicProperty
-NT_DestroyConnectionListenerPoller
 NT_DestroyInstance
-NT_DestroyLoggerPoller
-NT_DestroyTopicListenerPoller
-NT_DestroyValueListenerPoller
+NT_DestroyListenerPoller
 NT_DisposeConnectionInfoArray
-NT_DisposeConnectionNotification
-NT_DisposeConnectionNotificationArray
-NT_DisposeLogMessage
-NT_DisposeLogMessageArray
+NT_DisposeEvent
+NT_DisposeEventArray
 NT_DisposeString
 NT_DisposeTimestampedBoolean
 NT_DisposeTimestampedBooleanArray
@@ -46,12 +34,8 @@ NT_DisposeTimestampedString
 NT_DisposeTimestampedStringArray
 NT_DisposeTopicInfo
 NT_DisposeTopicInfoArray
-NT_DisposeTopicNotification
-NT_DisposeTopicNotificationArray
 NT_DisposeValue
 NT_DisposeValueArray
-NT_DisposeValueNotification
-NT_DisposeValueNotificationArray
 NT_Flush
 NT_FlushLocal
 NT_FreeBooleanArray
@@ -149,8 +133,7 @@ NT_IsConnected
 NT_Now
 NT_Publish
 NT_PublishEx
-NT_ReadConnectionListenerQueue
-NT_ReadLoggerQueue
+NT_ReadListenerQueue
 NT_ReadQueueBoolean
 NT_ReadQueueBooleanArray
 NT_ReadQueueDouble
@@ -167,14 +150,9 @@ NT_ReadQueueValuesBoolean
 NT_ReadQueueValuesDouble
 NT_ReadQueueValuesFloat
 NT_ReadQueueValuesInteger
-NT_ReadTopicListenerQueue
-NT_ReadValueListenerQueue
 NT_Release
 NT_ReleaseEntry
-NT_RemoveConnectionListener
-NT_RemoveLogger
-NT_RemoveTopicListener
-NT_RemoveValueListener
+NT_RemoveListener
 NT_SetBoolean
 NT_SetBooleanArray
 NT_SetDefaultBoolean
@@ -220,9 +198,7 @@ NT_StopServer
 NT_Subscribe
 NT_Unpublish
 NT_Unsubscribe
-NT_WaitForConnectionListenerQueue
-NT_WaitForTopicListenerQueue
-NT_WaitForValueListenerQueue
+NT_WaitForListenerQueue
 WPI_CreateEvent
 WPI_CreateSemaphore
 WPI_CreateSignalObject