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/sock_address_factory.cpp

@@ -130,6 +130,9 @@ namespace rmrf::net {
 		} catch (const std::invalid_argument& _) {
 			// Could not parse port. Continue as service
 		}
+		
+		// TODO sort to prioritize local addresses over more remote ones
+		
 		if(port != -1 && is_plain_ip_address(interface_description)) {
 			std::list<socketaddr> l = {parse_plain_ip_address(interface_description, (uint16_t) port, socket_type)};
 			return l;