Add log on TCP/UDP UT failure and fix UDP UT

[JohanBertrand]

Related Issue(s)
Has Unit Tests (y/n)
Documentation Included (y/n)

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Change Description

• Add log on stdout when an error happens in the TCP and UDP UT.
• Fix the following case, where the UDP UT would select twice the same port and fail binding later:

  [ RUN      ] Nominal.BasicReceiveThread
  Setup to send and receive udp to 127.0.0.1:60296
  UDP socket open error: Address already in use
  Port1: 60296
  Port2: 60296
  /home/fprime/Drv/Udp/test/ut/UdpTester.cpp:77: Failure
  Expected equality of these values:
  status2
  Which is: -9
  Drv::SOCK_SUCCESS
  Which is: 0
  [  FAILED  ] Nominal.BasicReceiveThread (10 ms)

  [ RUN      ] Reconnect.MultiMessaging
  Setup to send and receive udp to 127.0.0.1:6335
  UDP socket open error: Address already in use
  Port1: 6335
  Port2: 6335
  /home/fprime/Drv/Udp/test/ut/UdpTester.cpp:77: Failure
  Expected equality of these values:
  status2
  Which is: -9
  Drv::SOCK_SUCCESS
  Which is: 0
  [  FAILED  ] Reconnect.MultiMessaging (0 ms)

Rationale

TCP and UDP UT are often failing, and this will give more understanding of the reason of those failures.