Changing #by_ptr to a pointer to avoid potential bugs when copying the HullData struct #7612

In the example given in #7612 the issue was caused by the lines

box_hull2 := b3d.MakeBoxHull(1, 1, 1)
b3d.Shape_SetHull(box_shape, box_hull2.base)

There is a note about potential errors during copy in the box3d code
that seems to be causing the issue

/// A convex hull.
/// @note This data structure has data hanging off the end and cannot be
directly copied.
typedef struct b3HullData

update to include Shape_SetMesh as well

vendor/box3d/box3d.odin

@@ -1089,12 +1089,12 @@ foreign lib {
 	// Allows you to change a shape to be a hull or update the current hull.
 	// This does not modify the mass properties.
 	// @see Body_ApplyMassFromShapes
-	Shape_SetHull :: proc(shapeId: ShapeId, #by_ptr hull: HullData) ---
+	Shape_SetHull :: proc(shapeId: ShapeId, hull: ^HullData) ---
 
 	// Allows you to change a shape to be a mesh or update the current mesh.
 	// This does not modify the mass properties.
 	// @see Body_ApplyMassFromShapes
-	Shape_SetMesh :: proc(shapeId: ShapeId, #by_ptr meshData: MeshData, scale: Vec3) ---
+	Shape_SetMesh :: proc(shapeId: ShapeId, meshData: ^MeshData, scale: Vec3) ---
 
 	// Get the maximum capacity required for retrieving all the touching contacts on a shape
 	Shape_GetContactCapacity :: proc(shapeId: ShapeId) -> c.int ---