Submission of additional Rx tests and some questions

Hello everyone,

I have submitted two new unit tests to Gerrit for review. The tests 
check the following functionality of Rx: multiple concurrent calls over 
a connection. The second test checks a server running multiple services 
and verifies both successful calls and expected failures. Both of these 
tests are based on `simple-t` for the `rx` protocols.

I also wanted to ask a few questions regarding the Rx Netcat project (my 
primary references will be the BSD version as well as the Nmap version):
1. What kind of functionalities should the tool support? For example, 
enumeration capabilities, debugging, or security-features?
2. Should specific support for RPC calls be added as a separate mode?
3. Are there any specific requirements the mentors have in mind?

Best regards,
Aaditya Joil
(amberjojo on irc.libera.chat)