[Ohrrpgce] wip r13900: ItemDef type now supports loading all data from the ITM format

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https://github.com/ohrrpgce/ohrrpgce/commit/b13aaa843f9ebec6fce2f1b21a595dd3b6c0caee
Author: james <james at 7d344553-34f0-0310-a9b1-970ce8f1c3a2>
Date:   Mon Jun 23 00:39:51 2025 +0000

    ItemDef type now supports loading all data from the ITM format
    

 loading.rbas | 21 ++++++++++++++++++++-
 udts.bi      |  6 +++++-
 2 files changed, 25 insertions(+), 2 deletions(-)