Added sac/queue.h, moved timer.h to utl folder, new queue benchmark

benchmarks/queue/Makefile

@@ -0,0 +1,10 @@
+CFLAGS = -Wall -Wextra
+INCLUDE = ../../src
+
+main:
+	gcc queue.c -I $(INCLUDE) $(CFLAGS) -o a.exe -DCMC_QUEUE
+	a.exe
+	gcc queue.c -I $(INCLUDE) $(CFLAGS) -o a.exe -DSAC_QUEUE
+	a.exe
+	gcc queue.c -I $(INCLUDE) $(CFLAGS) -o a.exe -DEXT_QUEUE
+	a.exe