Apply suggestions from code review

Co-Authored-By: danbelcher-MSFT <dabelc@microsoft.com>

src/CalcManager/CalculatorManager.cpp

@@ -1,6 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
+#include <climits> // for UCHAR_MAX
 #include "Header Files/CalcEngine.h"
 #include "CalculatorManager.h"
 #include "CalculatorResource.h"

src/CalcManager/CalculatorVector.h

@@ -7,6 +7,8 @@
 #include <vector>
 #include <winerror.h>
 #include "Ratpack/CalcErr.h"
+#include <stdexcept> // for std::out_of_range
+#include <sal.h> // for SAL
 
 template <typename TType>
 class CalculatorVector

src/CalcManager/Ratpack/basex.cpp

@@ -15,6 +15,7 @@
 //
 //-----------------------------------------------------------------------------
 #include "ratpak.h"
+#include <cstring> // for memmove
 
 void _mulnumx( PNUMBER *pa, PNUMBER b );
 

src/CalcManager/Ratpack/conv.cpp

@@ -20,6 +20,7 @@
 #include <algorithm>
 #include <winerror.h>
 #include <sstream>
+#include <cstring> // for memmove, memcpy
 #include "ratpak.h"
 
 using namespace std;