[Ohrrpgce] wip r14242: Add "items gained reward"

[cron at rpg.hamsterrepublic.com]

https://github.com/ohrrpgce/ohrrpgce/commit/e64729c0754ad2bc207b0e1eb61627a7c9c634ba
Author: teeemcee <teeemcee at 7d344553-34f0-0310-a9b1-970ce8f1c3a2>
Date:   Sun Jan 18 05:49:39 2026 +0000

    Add "items gained reward"
    
    Also make getitem return number of items actually gained, to match the script
    command. Nice to have!
    

 bmod.rbas                             |   4 ++-
 const.bi                              |   2 +-
 docs/platformdict.xml                 |   2 +-
 docs/plotdict.xml                     |  51 ++++++++++++++++++++++++----
 docs/plotdictionary.html              |  61 ++++++++++++++++++++++++++++++----
 game_udts.bi                          |   1 +
 menustuf.rbas                         |   2 +-
 moresubs.rbas                         |  22 ++++++------
 plotscr.hsd                           |   5 +--
 scriptcommands.bas                    |  10 +++---
 testgame/autotest.hss                 |  22 +++++++++++-
 testgame/autotest.rpgdir/binsize.bin  | Bin 30 -> 30 bytes
 testgame/autotest.rpgdir/general.reld | Bin 38243 -> 38481 bytes
 testgame/autotest.rpgdir/ohrrpgce.hsp | Bin 1340604 -> 1343797 bytes
 testgame/autotest.rpgdir/ohrrpgce.say | Bin 8862 -> 8904 bytes
 whatsnew.txt                          |  13 ++++++++
 16 files changed, 160 insertions(+), 35 deletions(-)