add .gitignore file

Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>

Author: Kent Yoder

.gitignore

@@ -0,0 +1,23 @@
+*~
+*.o
+*.lo
+Makefile
+Makefile.in
+*.3
+*.8
+ABOUT-NLS
+aclocal.m4
+autom4te.cache
+config.guess
+config.h.in
+config.rpath
+config.sub
+configure
+cscope.out
+depcomp
+install-sh
+ltmain.sh
+m4
+missing
+po
+