[clang] [clang-format] Add ApplyAlwaysOnePerLineToTemplateArguments option (PR #137544)

[Owen Pan via cfe-commits]

owenca wrote:

> Introduce a new FormatStyle option, `ApplyAlwaysOnePerLineToTemplateArguments`, which controls whether `BinPackParameters=AlwaysOnePerLine` also applies to template argument lists.
> 
> This allows users to enforce one-per-line formatting for function parameters without unintentionally splitting template arguments.

This looks like a bug. Can we fix it without introducing a new option? If not, can we add it as a sub-option to `BinPackParameters`?

https://github.com/llvm/llvm-project/pull/137544