Fixed a few issues and added more functionality

Fixed player not rendering in third person and armor arm0 not moving with 64x64 skins. Added offsets to held item (main hand) and armor (boots).

Minecraft.Client/ModelPart.cpp

@@ -14,6 +14,7 @@ void ModelPart::_init()
 	bMirror = false;
 	visible = true;
 	hideWithHelmet = false;
+	isArmorPart1 = false;
 	neverRender = false;
 	x=y=z = 0.0f;
 	xRot=yRot=zRot = 0.0f;