Revert "Revert "Create libbase.""

This reverts commit a7870d88167f619e758b5bcd15b410d16da7c16b.
diff --git a/CPPLINT.cfg b/CPPLINT.cfg
new file mode 100644
index 0000000..5ee068e
--- /dev/null
+++ b/CPPLINT.cfg
@@ -0,0 +1,2 @@
+set noparent
+filter=-build/header_guard