GameINI: Add 60 FPS code for Pikmin Squared

StringUtil: Make UTF16ToUTF8 and UTF8ToUTF16 use custom encoding/decoding implementation.

Accomplished using `run-clang-tidy` with `performance-move-const-arg,performance-unnecessary-value-param,modernize-pass-by-value`.

Changed arguments to const references, removed them where inappropriate (e.g. sink parameters). Same with std::move.

Manually reviewed each change to make sure that it makes sense, and do something more appropriate if possible.

Replace `const std::vector&` arguments with `std::span`

Because of this mistake, HoleInMaskMisalignedPageTable was testing the
same thing as MisalignedPageTable, which wasn't the intent.

Mistakenly, MISALIGNED_HOLE_MASK_PAGE_TABLE_BASE was aligned and
MISALIGNED_HOLE_MASK_PAGE_TABLE_BASE_ALIGNED was misaligned. It should
be the other way around.

These variables are unused due to a separate mistake which is corrected
in the next commit.

APPROVED_LIST_HASH is moved to a separate file, making tests compilation faster after changing it.
The error message prints the hash in a way that it can be directly copy-pasted (though it still needs clang-format).