Here is what this PR does:
Fix Issue 2139: (MAKE-INDEX-HTMLS) was not handling pseudohosts correctly and an errant LI pseudohost was causing MAKE-INDEX-HTMLS to terminate early. Adjusted MAKE-INDEX-HTML so it uses psuedohosts only for the top level directory and everything further down in the tree uses the truenames relative to the top-level pseudohost, Results in a MAKE-INDEX-HTMLS run that works in the presence of random pseudohosts and in a collection of index.html files without difficult to understand and out of context references to pseudohosts.
Remove loadups/build directory from all HCFILES runs (on desktop and via github actions)
Added maiko source code and removed maiko lde executables from HCFILES outputs for github actions - thus adding maiko code and removing maiki executables @ files.interlisp.org.
Fixed scripts/clean_hcfiles.sh so that it actually cleans off all of the index.html files - was missing some.
.github/workflow directory was being left out of HCFILES. Put it back it.
* Add clean-hcfiles.sh; update do_hcfiles.sh to save hcfiles.dribble to loadups and to extract fails to hcfiles-fails.txt in loadups.
* Fix clean_hcfiles.sh to handle pdf files that are tracked by git.
* Tweak output of clean_hcfiles.sh
