Add Path::IsEmpty

Signed-off-by: Nicholas Van Sickle <nvsickle@amazon.com>

Code/Framework/AzCore/AzCore/DOM/DomPatch.cpp

@@ -395,7 +395,7 @@ namespace AZ::Dom
         const bool allowEndOfArray = (flags & ExistenceCheckFlags::AllowEndOfArray) != ExistenceCheckFlags::DefaultExistenceCheck;
 
         Path target = path;
-        if (target.Size() == 0)
+        if (target.IsEmpty())
         {
             Value wrapper(Dom::Type::Array);
             wrapper.ArrayPushBack(rootElement);

Code/Framework/AzCore/AzCore/DOM/DomPath.cpp

@@ -246,6 +246,11 @@ namespace AZ::Dom
         return m_entries.size();
     }
 
+    bool Path::IsEmpty() const
+    {
+        return m_entries.empty();
+    }
+
     PathEntry& Path::operator[](size_t index)
     {
         return m_entries[index];

Code/Framework/AzCore/AzCore/DOM/DomPath.h

@@ -111,6 +111,7 @@ namespace AZ::Dom
         void Clear();
         PathEntry At(size_t index) const;
         size_t Size() const;
+        bool IsEmpty() const;
 
         PathEntry& operator[](size_t index);
         const PathEntry& operator[](size_t index) const;