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/FolderTexturePack.cpp

@@ -31,7 +31,7 @@ InputStream *FolderTexturePack::getResourceImplementation(const wstring &name) /
 #endif
 	InputStream *resource = InputStream::getResourceAsStream(wDrive + name);
 	//InputStream *stream = DefaultTexturePack::class->getResourceAsStream(name);
-	//if (stream == NULL)
+	//if (stream == nullptr)
 	//{
 	//	throw new FileNotFoundException(name);
 	//}
@@ -85,7 +85,7 @@ void FolderTexturePack::loadUI()
 		swprintf(szResourceLocator, LOCATOR_SIZE,L"file://%lsTexturePack.xzp#skin_Minecraft.xur",getPath().c_str());
 
 		XuiFreeVisuals(L"");
-		app.LoadSkin(szResourceLocator,NULL);//L"TexturePack");
+		app.LoadSkin(szResourceLocator,nullptr);//L"TexturePack");
 		bUILoaded = true;
 		//CXuiSceneBase::GetInstance()->SetVisualPrefix(L"TexturePack");
 	}