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/Windows64/Windows64_UIController.cpp

@@ -82,7 +82,7 @@ void ConsoleUIController::render()
 	example, no resolve targets are required. */
 	gdraw_D3D11_SetTileOrigin( m_pRenderTargetView,
 		m_pDepthStencilView,
-		NULL,
+		nullptr,
 		0,
 		0 );
 
@@ -147,7 +147,7 @@ void ConsoleUIController::setTileOrigin(S32 xPos, S32 yPos)
 {
 	gdraw_D3D11_SetTileOrigin( m_pRenderTargetView,
 		m_pDepthStencilView,
-		NULL,
+		nullptr,
 		xPos,
 		yPos );
 }
@@ -163,7 +163,7 @@ GDrawTexture *ConsoleUIController::getSubstitutionTexture(int textureId)
 	ID3D11ShaderResourceView *tex = RenderManager.TextureGetTexture(textureId);
 	ID3D11Resource *resource;
 	tex->GetResource(&resource);
-	ID3D11Texture2D  *tex2d = (ID3D11Texture2D *)resource;
+	ID3D11Texture2D  *tex2d = static_cast<ID3D11Texture2D *>(resource);
 	D3D11_TEXTURE2D_DESC desc;
 	tex2d->GetDesc(&desc);
 	GDrawTexture *gdrawTex = gdraw_D3D11_WrappedTextureCreate(tex);