First unit tests

Bugs that still remain:

• The socketaddr factory (DNS lookup) does not yet seam to be fully functional.
• UDP socket test needs to pass
• TCP socket test needs to pass
• Unit Test for socketaddr Factory lookups
• Segfault at test shutdown needs to be fixed.
• fcntl needs to be checked for correct flag retuns

src/lib/nccpp/constants.hpp

@@ -163,7 +163,10 @@ int constexpr suspend{KEY_SUSPEND};
 int constexpr undo{KEY_UNDO};
 int constexpr mouse{KEY_MOUSE};
 int constexpr resize{KEY_RESIZE};
-//int constexpr event{KEY_EVENT}; // TODO fixme
+
+#ifdef KEY_EVENT
+int constexpr event{KEY_EVENT};
+#endif
 
 } // namespace keys