Add AddressableLED (#2092)

hal/src/main/java/edu/wpi/first/hal/AddressableLEDJNI.java

@@ -0,0 +1,23 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2019 FIRST. All Rights Reserved.                             */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+package edu.wpi.first.hal;
+
+@SuppressWarnings("AbbreviationAsWordInName")
+public class AddressableLEDJNI extends JNIWrapper {
+  public static native int initialize(int pwmHandle);
+  public static native void free(int handle);
+
+  public static native void setLength(int handle, int length);
+  public static native void setData(int handle, byte[] data);
+
+  public static native void setBitTiming(int handle, int lowTime0, int highTime0, int lowTime1, int highTime1);
+  public static native void setSyncTime(int handle, int syncTime);
+
+  public static native void start(int handle);
+  public static native void stop(int handle);
+}