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

[Gedare Bloom via cfe-commits]

gedare wrote:

I think you should add test cases with multiple `>>` closing, see `UnderstandsTemplateParameters` for example.

Consider trying the code snippet mentioned in https://github.com/llvm/llvm-project/issues/80049 as well. 

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