<maxTotalMass> do not limit storage

[rimpy-custom]

<maxTotalMass> restrictions do not apply on storage, weight of stored items exceeds the limit. Steps to reproduce with Tall shelf:

1. Modify Uranium def to have <Mass>1.18</Mass> instead of <Mass>1</Mass>
2. Allow Uranium in Tall shelf, so 8 stacks of uranium gives you 708 kg and Tall shelf max limit is 640 kg. You will see that pawns able to put 8 stacks to Tall shelf with 708/640 kg mass.

Stack weight limit works, but not total weight of all items stored. Looks like <maxTotalMass> do nothing. So for now you caanot set limits on total mass stored.