[clang-tools-extra] [clang-tidy] add 'IgnoreMarcos' option to 'special-member-functions' check (PR #143550)

[Julian Schmidt via cfe-commits]

https://github.com/5chmidti approved this pull request.

LGTM but I'm +- on the default

Let's see if others have a stronger opinion on the default

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Not directly part of this, but:
I'd prefer to see a warning for expansions of macros defined inside the code base, but not from macros defined outside of it. (E.g. MY_CLASS vs gtest macros)

https://github.com/llvm/llvm-project/pull/143550