utils: Add various bit manipulation related utilites

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/include/Makefile.am b/include/Makefile.am
index e69de29..b16ce5c 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = gapk