Modernize project codebase (#906)

* 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

* Add safety checks and fix a issue with vector going OOR

Minecraft.World/EnchantmentTableTile.cpp

@@ -14,8 +14,8 @@ EnchantmentTableTile::EnchantmentTableTile(int id) : BaseEntityTile(id, Material
 	updateDefaultShape();
 	setLightBlock(0);
 
-	iconTop = NULL;
-	iconBottom = NULL;
+	iconTop = nullptr;
+	iconBottom = nullptr;
 }
 
 // 4J Added override
@@ -69,7 +69,7 @@ Icon *EnchantmentTableTile::getTexture(int face, int data)
 
 shared_ptr<TileEntity> EnchantmentTableTile::newTileEntity(Level *level)
 {
-	return shared_ptr<TileEntity>(new EnchantmentTableEntity());
+	return std::make_shared<EnchantmentTableEntity>();
 }
 
 bool EnchantmentTableTile::use(Level *level, int x, int y, int z, shared_ptr<Player> player, int clickedFace, float clickX, float clickY, float clickZ, bool soundOnly/*=false*/) // 4J added soundOnly param