Consolidate (almost) all #include's into new "scheme.h"

scripts/build.sh

@@ -3,6 +3,7 @@ set -eu
 os="$(uname | tr A-Z- a-z_)"
 o_files=""
 o_files="$o_files algo_color.o"
+o_files="$o_files argcount.o"
 o_files="$o_files bitvector-ops.o"
 o_files="$o_files bitvector.o"
 o_files="$o_files buf.o"
@@ -85,6 +86,7 @@ echo "Entering directory '$PWD'"
 set -x
 
 $CC $CFLAGS -c ../c/algo_color.c
+$CC $CFLAGS -c ../c/argcount.c
 $CC $CFLAGS -c ../c/bitvector-ops.c
 $CC $CFLAGS -c ../c/bitvector.c
 $CC $CFLAGS -c ../c/buf.c