QUnitStateVector and QEngineOCL debugging

A new class QUnitStateVector can hold Schmidt-decomposed representation of state vectors. For now, specifically, it is used only for near-Clifford simulation with QUnitClifford.

A long-standing edge case in QEngineOCL::MAll() has also been fixed.

Full Changelog: vm6502q.v9.9.9...vm6502q.v9.9.13

sha1sum results:
79f7b51945a02769ff45892363d34831c0549587 libqrack-macosx_14_0_arm64.zip
40dee73bb65b11daaf8a46b15bdf965d34b4bb6a libqrack-manylinux2014_x86_64.zip
5d095eb03fbbb4481cbe2aca820002ef91fce45c libqrack-manylinux_2_35_x86_64.zip
102138935656acee20c4758c07cb1aa0997f484f libqrack-manylinux_2_39_x86_64.zip
004c2fd26a79be9bb62a530920e52d61f3fc1bbd libqrack-win-amd64.zip