merge v1.6.0 into master

[bxparks]

• 1.6.0 (2021-11-02)
  • Add TestRunner::includesub(word) and TestRunner::excludesub(word)
    which includes or excludes tests based on the substring match on the
    word.
  • Call excludeAll() if the first filtering request is an include() or
    includesub().
    • Otherwise, the first include request does not do anything.
  • Add command line flags and arguments when compiled under EpoxyDuino.
    See Command Line Flags and
    Arguments in the README.md for
    full details. Fixes
    Issue#76.
    • --include pattern,...
      • Calls TestRunner::include(pattern) on each pattern in the
        comma-separated list.
    • --exclude pattern,...
      • Calls TestRunner::exclude(pattern) on each pattern in the
        comma-separated list.
    • --includesub substring,...
      • Calls TestRunner::includesub(substring) on each substring in
        the comma-separated list.
    • --excludesub substring,...
      • Calls TestRunner::excludesub(substring) on each substring in
        the comma-separated list.
    • substring ...
      • Any remaining space-separated list of words are processed
        using TestRunner::includesub(substring).