Remove wpiutil and update to the new build system (#210)

src/main/native/cpp/tables/ITableListener.cpp

@@ -0,0 +1,9 @@
+#include "tables/ITableListener.h"
+
+#include "ntcore_c.h"
+
+void ITableListener::ValueChangedEx(ITable* source, llvm::StringRef key,
+                                    std::shared_ptr<nt::Value> value,
+                                    unsigned int flags) {
+  ValueChanged(source, key, value, (flags & NT_NOTIFY_NEW) != 0);
+}

src/main/native/cpp/tables/TableKeyNotDefinedException.cpp

@@ -0,0 +1,19 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2015. 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "tables/TableKeyNotDefinedException.h"
+
+TableKeyNotDefinedException::TableKeyNotDefinedException(llvm::StringRef key)
+    : msg("Unknown Table Key: ") {
+  msg += key;
+}
+
+const char* TableKeyNotDefinedException::what() const NT_NOEXCEPT {
+  return msg.c_str();
+}
+
+TableKeyNotDefinedException::~TableKeyNotDefinedException() NT_NOEXCEPT {}