Merge branch 'sibyll'

ThirdParty/bitset2/detail/index_lsb_set.hpp

ThirdParty/bitset2/detail/reverse_bits.hpp

ThirdParty/bitset2/detail/select_base_t.hpp

ThirdParty/bitset2/detail/ullong2array.hpp

ThirdParty/bitset2/tests/bench01.cpp

ThirdParty/bitset2/tests/counter128.cpp

ThirdParty/bitset2/tests/example01.cpp

ThirdParty/bitset2/tests/gen_randoms.hpp

ThirdParty/bitset2/tests/gray_code.cpp

ThirdParty/bitset2/tests/mk.sh

ThirdParty/bitset2/tests/test_array2array.cpp

ThirdParty/bitset2/tests/test_bitset2_01.cpp

ThirdParty/bitset2/tests/test_bitset2_02.cpp

ThirdParty/bitset2/tests/test_nonconst_constexpr01.cpp

ThirdParty/bitset2/tests/test_ullong2array.cpp

ThirdParty/bitset2/tests/tests01.cpp