Display Unicode character for keys in HotkeySettingsControl (#2249)

* Fix HotkeyControl virtual key display

* A new interop project was setup to provide wrappers for C# projects
  that want to access functionality in the common project.

* Add assembly info

* Remove WIN32 configurations

src/modules/keyboardmanager/common/Helpers.cpp

@@ -2,6 +2,8 @@
 #include "Helpers.h"
 #include <sstream>
 
+using namespace winrt::Windows::Foundation;
+
 namespace KeyboardManagerHelper
 {
     // Function to split a wstring based on a delimiter and return a vector of split strings
@@ -14,12 +16,12 @@ namespace KeyboardManagerHelper
         {
             splittedStrings.push_back(item);
         }
-        
+
         return splittedStrings;
     }
-    
+
     // Function to return the next sibling element for an element under a stack panel
-    winrt::Windows::Foundation::IInspectable getSiblingElement(winrt::Windows::Foundation::IInspectable const& element)
+    IInspectable getSiblingElement(IInspectable const& element)
     {
         FrameworkElement frameworkElement = element.as<FrameworkElement>();
         StackPanel parentElement = frameworkElement.Parent().as<StackPanel>();
@@ -28,7 +30,7 @@ namespace KeyboardManagerHelper
         parentElement.Children().IndexOf(frameworkElement, index);
         return parentElement.Children().GetAt(index + 1);
     }
-    
+
     // Function to check if the key is a modifier key
     bool IsModifierKey(DWORD key)
     {
@@ -75,4 +77,14 @@ namespace KeyboardManagerHelper
             return false;
         }
     }
+    Collections::IVector<IInspectable> ToBoxValue(const std::vector<std::wstring>& list)
+    {
+        Collections::IVector<IInspectable> boxList = single_threaded_vector<IInspectable>();
+        for (auto& val : list)
+        {
+            boxList.Append(winrt::box_value(val));
+        }
+
+        return boxList;
+    }
 }