Toy_VM and Toy_Stack are working and tested, read more

At this point, only a minimal number of operations are working, and
after running any kind of source code, the 'result' is simply left on
the VM's stack. Still, it's awesome to see it reach this point.

source/toy_stack.c

@@ -40,7 +40,7 @@ void Toy_pushStack(Toy_Stack* stack, Toy_Value value) {
 	//expand the capacity if needed
 	if (stack->count + 1 > stack->capacity) {
 		int oldCapacity = stack->capacity;
-		stack->capacity = TOY_GROW_CAPACITY(stack->capacity);
+		stack->capacity = stack->capacity < MIN_SIZE ? MIN_SIZE : stack->capacity * 2; //similar to TOY_GROW_CAPACITY, with a bigger initial size
 		stack->ptr = TOY_GROW_ARRAY(Toy_Value, stack->ptr, oldCapacity, stack->capacity);
 	}