Fix errors from new cpplint.py (#7105)

wpiutil/src/test/native/cpp/Base64Test.cpp

@@ -2,6 +2,8 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
+#include <string>
+
 #include <gtest/gtest.h>
 
 #include "wpi/Base64.h"

wpiutil/src/test/native/cpp/DataLogTest.cpp

@@ -4,6 +4,8 @@
 
 #include <array>
 #include <memory>
+#include <string>
+#include <vector>
 
 #include <gtest/gtest.h>
 

wpiutil/src/test/native/cpp/FileLoggerTest.cpp

@@ -2,6 +2,7 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
+#include <string>
 #include <string_view>
 #include <vector>
 

wpiutil/src/test/native/cpp/ScopeExitTest.cpp

@@ -2,6 +2,8 @@
 // Open Source Software; you can modify and/or share it under the terms of
 // the WPILib BSD license file in the root directory of this project.
 
+#include <utility>
+
 #include <gtest/gtest.h>
 
 #include "wpi/scope"

wpiutil/src/test/native/cpp/UidVectorTest.cpp

@@ -4,6 +4,8 @@
 
 #include "wpi/UidVector.h"  // NOLINT(build/include_order)
 
+#include <vector>
+
 #include <gtest/gtest.h>
 
 namespace wpi {

wpiutil/src/test/native/cpp/expected/ExpectedTest.cpp

@@ -4,6 +4,7 @@
 
 #include <initializer_list>
 #include <tuple>
+#include <utility>
 #include <vector>
 
 #include <gtest/gtest.h>

wpiutil/src/test/native/cpp/future_test.cpp

@@ -4,7 +4,7 @@
 
 #include "wpi/future.h"  // NOLINT(build/include_order)
 
-#include <thread>
+#include <utility>
 
 #include <gtest/gtest.h>
 

wpiutil/src/test/native/cpp/sigslot/signal-tracking.cpp

@@ -34,6 +34,7 @@ SOFTWARE.
 #include "wpi/Signal.h"  // NOLINT(build/include_order)
 
 #include <cmath>
+#include <memory>
 #include <sstream>
 #include <string>
 

wpiutil/src/test/native/cpp/sigslot/signal.cpp

@@ -36,6 +36,7 @@ SOFTWARE.
 #include <cmath>
 #include <sstream>
 #include <string>
+#include <utility>
 
 #include <gtest/gtest.h>
 

wpiutil/src/test/native/cpp/struct/DynamicStructTest.cpp

@@ -6,6 +6,8 @@
 
 #include <stdint.h>
 
+#include <string>
+
 #include <gtest/gtest.h>
 
 using namespace wpi;