Add mechanism to control Shuffleboard recordings and add event markers (#1414)

wpilibc/src/main/native/include/frc/shuffleboard/ShuffleboardEventImportance.h

@@ -0,0 +1,36 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2018 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+namespace frc {
+
+// Maintainer note: this enum is mirrored in WPILibJ and in Shuffleboard
+// Modifying the enum or enum strings requires a corresponding change to the
+// Java enum and the enum in Shuffleboard
+
+enum ShuffleboardEventImportance { kTrivial, kLow, kNormal, kHigh, kCritical };
+
+inline wpi::StringRef ShuffleboardEventImportanceName(
+    ShuffleboardEventImportance importance) {
+  switch (importance) {
+    case kTrivial:
+      return "TRIVIAL";
+    case kLow:
+      return "LOW";
+    case kNormal:
+      return "NORMAL";
+    case kHigh:
+      return "HIGH";
+    case kCritical:
+      return "CRITICAL";
+    default:
+      return "NORMAL";
+  }
+}
+
+}  // namespace frc