Clang Format Blinds (#253)

* Quick cleanup on bitset docs

* Clang format blind.h/c

* Replace `_` with `s_` for functions

* Fix newline size for macros.

* Fix format for ci

* Add macro for "unused" attribute

.github/workflows/run_tests_ci_workflow.yml

@@ -24,6 +24,7 @@ jobs:
           include/list.h source/list.c
           include/sprite.h source/sprite.c 
           include/splash_screen.h source/splash_screen.c 
+          include/blind.h source/blind.c
         # Currently contains only the code that has been formatted to conform
         # When all existing code conforms, change to this:
         # run: clang-format --dry-run -Werror include/*.h source/*.c