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/PS3/SPU_Tasks/ChunkUpdate/StemTile_SPU.h

@@ -35,7 +35,7 @@ public:
 		this->setShape(0.5f - ss, 0, 0.5f - ss, 0.5f + ss, 0.25f, 0.5f + ss);
 	}
 
-    virtual void updateShape(ChunkRebuildData *level, int x, int y, int z, int forceData = -1, TileEntity* forceEntity = NULL)	// 4J added forceData, forceEntity param
+    virtual void updateShape(ChunkRebuildData *level, int x, int y, int z, int forceData = -1, TileEntity* forceEntity = nullptr)	// 4J added forceData, forceEntity param
 	{
 		ms_pTileData->yy1[id] = (level->getData(x, y, z) * 2 + 2) / 16.0f;
 		float ss = 0.125f;