[clang] [clang-format] Add BreakBeforeTemplateClose option (PR #118046)

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leijurv wrote:

Yes. I followed the code that implements `AlignAfterOpenBracket: BlockIndent`, except applying to ClosesTemplateDeclaration. I made it a new setting for backwards compatibility. 👍

https://github.com/llvm/llvm-project/pull/118046