[wpimath] Add extern templates for common cases

This helps reduce compile times and memory usage.

wpimath/src/main/native/cpp/kinematics/SwerveDriveOdometry.cpp

@@ -0,0 +1,11 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// 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 "frc/kinematics/SwerveDriveOdometry.h"
+
+namespace frc {
+
+template class EXPORT_TEMPLATE_DEFINE(WPILIB_DLLEXPORT) SwerveDriveOdometry<4>;
+
+}  // namespace frc