Store Making Tax Digital submission history on server

The new MTD module stores submission history locally on the client PC which the software is installed on. This needs to be changed so that this information is backed up along with other Sage 200 data in line with the concept of a multi user system. This also needs changing for the case where the MTD module is installed on a load balanced set of terminal servers as there is no control of what terminal server will be used and the submission history must always be available consistently.