BUG: Correct build errors on Windows

Base/Geometry/imstkSurfaceMesh.h

@@ -22,6 +22,7 @@
 #ifndef imstkSurfaceMesh_h
 #define imstkSurfaceMesh_h
 
+#include <array>
 #include <set>
 
 #include "imstkMesh.h"

Examples/Sandbox/main.cpp

@@ -29,8 +29,8 @@ int main()
 
     auto cubeGeom = std::make_shared<imstk::Cube>();
     cubeGeom->scale(0.5);
-    cubeGeom->rotate(imstk::UP,    M_PI_4);
-    cubeGeom->rotate(imstk::RIGHT, M_PI_4);
+    cubeGeom->rotate(imstk::UP,    M_PI/4);
+    cubeGeom->rotate(imstk::RIGHT, M_PI/4);
     cubeGeom->translate(2, 1, 0.5);
     auto cubeObj = std::make_shared<imstk::VisualObject>("VisualCube");
     cubeObj->setVisualGeometry(cubeGeom);