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/net/connection_client.hpp

@@ -11,6 +11,12 @@
 #include <memory>
 #include <string>
 
+#if EAGAIN != EWOULDBLOCK
+    #define EAGAIN_WRAPPER ((errno != EAGAIN) && (errno != EWOULDBLOCK))
+#else
+    #define EAGAIN_WRAPPER (errno != EAGAIN)
+#endif
+
 namespace rmrf::net {
 
 template<class client>