Project modernization (#630)

* Fixed boats falling and a TP glitch #266

* Replaced every C-style cast with C++ ones

* Replaced every C-style cast with C++ ones

* Fixed boats falling and a TP glitch #266

* Updated NULL to nullptr and fixing some type issues

* Modernized and fixed a few bugs

- Replaced most instances of `NULL` with `nullptr`.
- Replaced most `shared_ptr(new ...)` with `make_shared`.
- Removed the `nullptr` macro as it was interfering with the actual nullptr keyword in some instances.

* Fixing more conflicts

* Replace int loops with size_t and start work on overrides

Minecraft.Client/Durango/Network/ChatIntegrationLayer.h

@@ -238,7 +238,7 @@ private:
         __in ChatPacketType chatPacketType
         );
     Concurrency::critical_section m_chatPacketStatsLock;
-    int m_chatVoicePacketsStatistic[2][(int)Microsoft::Xbox::GameChat::ChatMessageType::InvalidMessage+1];
+    int m_chatVoicePacketsStatistic[2][static_cast<int>(Microsoft::Xbox::GameChat::ChatMessageType::InvalidMessage)+1];
 };
 
 std::shared_ptr<ChatIntegrationLayer> GetChatIntegrationLayer();