Format and document utility files (#246)

* Format and document utility files

* Add Doxyfile

* small updates for cleanup

* Final touches for util docs

* Replace `_` with `s_` for static functions

* update for clang-format changes

* Update include/audio_utils.h

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

* Apply suggestions from code review

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

* Update include/audio_utils.h

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

* Update include/graphic_utils.h

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

* Make clang-format happy :)

* Update gitignore for doxygen

* restor graphic_utils.c to main

* update graphics utils

* tmp

* tmp

* get it to compile

* fix some bad merge mistakes

* Fix clang format

* Apply suggestions from code review

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

* make clang-format happy

---------

Co-authored-by: MeirGavish <meir.gavish@gmail.com>

.github/workflows/clang_format_ci_workflow.yml

@@ -18,8 +18,12 @@ jobs:
 
       - name: Run clang-format
         run: >
-          clang-format --dry-run -Werror
-          include/bitset.h source/bitset.c
+          clang-format --dry-run -Werror 
+          include/bitset.h source/bitset.c 
+          include/affine_background.h source/affine_background.c 
+          include/audio_utils.h source/audio_utils.c 
+          include/graphic_utils.h source/graphic_utils.c 
+          include/util.h source/util.c
           include/pool.h source/pool.c
           include/card.h source/card.c 
           include/game.h source/game.c