[clang] Add support for aligning BlockComments in declarations (PR #109497)

[Owen Pan via cfe-commits]

================
@@ -50,33 +50,43 @@ template <> struct MappingTraits<FormatStyle::AlignConsecutiveStyle> {
                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,
                      /*AcrossComments=*/false, /*AlignCompound=*/false,
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owenca wrote:

```suggestion
                     /*AcrossComments=*/false, /*AlignBlockComments=*/false,
                     /*AlignCompound=*/false,
```

https://github.com/llvm/llvm-project/pull/109497