Limit items in inventory based on permission.

Config

<?xml version="1.0" encoding="utf-8"?>
<Config xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Limits>
    <Limit>
      <Id>15</Id>
      <Amount>10</Amount>
    </Limit>
    <Limit>
      <Id>394</Id>
      <Amount>10</Amount>
    </Limit>
  </Limits>
</Config>