Led control (#109)

* Refactor vision source manager to not suck

* Run spotless

* Fix settings not being saved

* run spotless

* add braudcast

* set LEDs based on pipeline

* GPIO refactor, hardwaremanager singleton change

* PiGPIO cleanup, add repeating blink, StatusLED

* Refactor CustomGPIO

* add ledMode NT Entry

* Add blink reset

* Blink fixes

* Move logic to VisionLED class

* Resolve comments, apply spotless

* "Fix' HardwareManagerTest

Co-authored-by: Matt <matthew.morley.ca@gmail.com>

photon-server/src/main/java/org/photonvision/common/ProgramStatus.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2020 Photon Vision.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.photonvision.common;
+
+public enum ProgramStatus {
+    UHOH,
+    RUNNING,
+    RUNNING_NT,
+    RUNNING_NT_TARGET
+}