[kernel|test] Add simple test case for UDP options processing
[kernel|test] Add simple test case for UDP options processing

Add simple test case for UDP options processing verification.
Testing that options do not get "eaten" by add_membership and
drop_membership.

OTP-18323

erlang/otp,erlang/otp,bjorng/otp,bjorng/otp,bjorng/otp,bjorng/otp,erlang/otp,bjorng/otp,erlang/otp,bjorng/otp,erlang/otp,bjorng/otp,erlang/otp,bjorng/otp,erlang/otp,bjorng/otp,erlang/otp,erlang/otp,bjorng/otp,erlang/otp