Fix errors from new cpplint.py (#7105)

wpimath/src/main/native/cpp/trajectory/Trajectory.cpp

@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <stdexcept>
+#include <vector>
 
 #include <wpi/MathExtras.h>
 #include <wpi/json.h>

wpimath/src/main/native/cpp/trajectory/TrajectoryGenerator.cpp

@@ -5,6 +5,7 @@
 #include "frc/trajectory/TrajectoryGenerator.h"
 
 #include <utility>
+#include <vector>
 
 #include <wpi/print.h>
 

wpimath/src/main/native/cpp/trajectory/TrajectoryParameterizer.cpp

@@ -28,6 +28,8 @@
 
 #include "frc/trajectory/TrajectoryParameterizer.h"
 
+#include <vector>
+
 #include <fmt/format.h>
 
 #include "units/math.h"

wpimath/src/main/native/cpp/trajectory/TrajectoryUtil.cpp

@@ -4,6 +4,7 @@
 
 #include "frc/trajectory/TrajectoryUtil.h"
 
+#include <string>
 #include <system_error>
 
 #include <fmt/format.h>

wpimath/src/main/native/cpp/trajectory/constraint/DifferentialDriveKinematicsConstraint.cpp

@@ -4,6 +4,8 @@
 
 #include "frc/trajectory/constraint/DifferentialDriveKinematicsConstraint.h"
 
+#include <utility>
+
 using namespace frc;
 
 DifferentialDriveKinematicsConstraint::DifferentialDriveKinematicsConstraint(

wpimath/src/main/native/cpp/trajectory/constraint/DifferentialDriveVoltageConstraint.cpp

@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <limits>
+#include <utility>
 
 #include <wpi/MathExtras.h>
 

wpimath/src/main/native/cpp/trajectory/proto/TrajectoryProto.cpp

@@ -4,6 +4,8 @@
 
 #include "frc/trajectory/proto/TrajectoryProto.h"
 
+#include <vector>
+
 #include <wpi/ProtoHelper.h>
 
 #include "trajectory.pb.h"