Squashed 'third_party/Phoenix-frc-lib/' content from commit 666d176

Change-Id: Ibaca2fc8ffb1177e786576cc1e4cc9f7a8c98f13
git-subtree-dir: third_party/Phoenix-frc-lib
git-subtree-split: 666d176a08151793044ab74e0005f13d3732ed96
diff --git a/cpp/include/ctre/phoenix/Signals/IOutputSignal.h b/cpp/include/ctre/phoenix/Signals/IOutputSignal.h
new file mode 100644
index 0000000..ff909fe
--- /dev/null
+++ b/cpp/include/ctre/phoenix/Signals/IOutputSignal.h
@@ -0,0 +1,15 @@
+#pragma once
+
+namespace ctre {
+namespace phoenix {
+namespace signals {
+
+class IOutputSignal {
+public:
+	virtual ~IOutputSignal(){}
+	virtual void Set(double value) = 0;
+};
+
+} // namespace  Signals
+} // namespace phoenix
+} // namespace ctre