IWYU cleanup done

Docs/TASKS/IWYU.md

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+Your job is to remove unnecessary include-files from a
+single C++ source file in UE Wingman, and also, add missing
+includes.
+
+Remember: not all removals that compile are good according
+to the principles of IWYU.  A source file should include or
+forward-define everything it uses, and should include
+nothing that it doesn't.  You will need to think seriously.
+
+To test your work, you will need to do a build:
+
+    python3 build.py c++
+
+followed by:
+
+    tools/clangd-query.py diagnostics <file>
+    
+Sometimes, clangd gets desynchronized.  If clangd is
+reporting an error on UCLASS or on GENERATED_BODY after a
+successful build, then clangd is out of sync.  In that case,
+you will need to refresh clangd:
+
+    tools/clangd-query.py stop
+
+Then you can try again with the diagnostics. If the testing
+reveals a mistake, please fix it and then redo the testing.
+
+Start by reading the head of TODO.txt, which lists the files
+that need to be cleaned.  Please clean up the first file on
+the todo list, then remove that one file from the todo list.
+Then you are done.
+
+One special exception to IWYU: all unreal code should include
+CoreMinimal.h, no matter what.
+
+There is no need to run clangd before you begin.  These
+files are already clangd-clean.
+
+Do not be chatty about it.  Just begin, get it cleaned, and
+then very concisely report your results.  And once again: do
+not forget the principle of IWYU: not all removals that
+compile are good.  If a file is using a symbol, it should
+include it or forward-define it, not rely on transitive
+includes.  Remove what should be removed, add what should be
+added.
+
+
+
+
+