Refactored to ns-3.42 version

[rogerio-silva]

Update for ns-3.42 Compatibility and Code Refactoring

Description:

This pull request includes several important updates to ensure compatibility with ns-3.42 and refactors some parts of the code for better functionality and alignment with the new API standards. Below is a summary of the changes:

Version: 1.1.0 - 2024-09-01

Author: rogerio-silva

Changes:

1. Code compatibility with ns-3.42:

   • Ensured the project builds without errors on ns-3.42.

2. Refactor of opengym-test-suite.cc:

   • Replaced deprecated usage of ns3::TestSuite::UNIT with Type::UNIT.
   • Replaced deprecated usage of ns3::TestCase::QUICK with Duration::QUICK.
   • Refactored to handle the removal of SetTos in ns3::InetSocketAddress, using a socket and setting the TOS field with SetIpTos() instead.

3. Refactor of linear-mesh and linear-mesh-2 examples:

   • Added a socket and set the TOS field directly using SetIpTos():

     Ptr<Socket> socket = Socket::CreateSocket (srcNode, UdpSocketFactory::GetTypeId ());
     socket->SetIpTos (0x70); // AC_BE
     # ...
     source.SetAttribute ("Socket", PointerValue (socket));

These changes are crucial for keeping the code up-to-date with the latest version of ns-3.