refactor: mp_units subdirectory renamed to mp-units

test/unit_test/static/dimension_test.cpp

@@ -21,11 +21,11 @@
 // SOFTWARE.
 
 #include "test_tools.h"
-#include <mp_units/dimension.h>
-#include <mp_units/quantity.h>
-#include <mp_units/quantity_spec.h>
-#include <mp_units/reference.h>
-#include <mp_units/unit.h>
+#include <mp-units/dimension.h>
+#include <mp-units/quantity.h>
+#include <mp-units/quantity_spec.h>
+#include <mp-units/reference.h>
+#include <mp-units/unit.h>
 
 namespace {