Handle Byte Order Marks #697

Job	Run time
find_package/linux/Release	4m 16s
find_package/linux/Debug	1m 43s
find_package/linux/libcxx/Release	5m 15s
find_package/linux/libcxx/Debug	3m 3s
find_package/macos/Release	5m 2s
find_package/macos/Debug	2m 26s
find_package/win/Release	5m 16s
find_package/win/Debug	2m 28s
find_library/linux/Release	4m 24s
find_library/linux/Debug	1m 5s
find_library/linux/libcxx/Release	6m 28s
find_library/linux/libcxx/Debug	3m 41s
find_library/macos/Release	5m 27s
find_library/macos/Debug	2m 17s
find_library/win/Release	5m 9s
find_library/win/Debug	3m 11s
singleheader/linux/Release	4m 23s
singleheader/linux/Debug	3m 19s
singleheader/linux/libcxx/Release	5m 28s
singleheader/linux/libcxx/Debug	3m 54s
singleheader/macos/Release	6m 23s
singleheader/macos/Debug	6m 24s
singleheader/win/Release	6m 4s
singleheader/win/Debug	4m 46s
	1h 41m 52s

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