[wpimath] Explicitly export wpimath symbols

Co-authored-by: Tyler Veness <calcmogul@gmail.com>

wpimath/src/main/native/include/frc/MathUtil.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <wpi/SymbolExports.h>
 #include <wpi/numbers>
 
 #include "units/angle.h"
@@ -17,6 +18,7 @@ namespace frc {
  * @param value    Value to clip.
  * @param deadband Range around zero.
  */
+WPILIB_DLLEXPORT
 double ApplyDeadband(double value, double deadband);
 
 /**
@@ -46,6 +48,7 @@ constexpr T InputModulus(T input, T minimumInput, T maximumInput) {
  *
  * @param angle Angle to wrap.
  */
+WPILIB_DLLEXPORT
 constexpr units::radian_t AngleModulus(units::radian_t angle) {
   return InputModulus<units::radian_t>(angle,
                                        units::radian_t{-wpi::numbers::pi},