net/addr/ip: Add basic IP comparison and hash ops

Change-Id: I79ab9c225ff031da7df0c788078f2a8e5c486990
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/src/net/addr/ip.cpp b/src/net/addr/ip.cpp
new file mode 100644
index 0000000..466c509
--- /dev/null
+++ b/src/net/addr/ip.cpp
@@ -0,0 +1 @@
+#include <stdplus/net/addr/ip.hpp>