Pyqrack

The past couple of months have seen almost exclusively style and debugging changes in Qrack. (We experimented with fixed-point math for certain applications, but it was only suitable on GNU/Linux, and the experiments mostly proved we are better leaving out fixed-point for now.) This release compared the current head of `main` branch to the state of Qrack about 2 months ago and whittled down the diff to a small and trustworthy set of bug fixes and adjustments according to style guide.

This release might constitute a relatively "complete" state of the core Qrack project, for a significant amount of time into the future. (Most future development is likely to focus on building out support for other quantum software frameworks.)

(Note that releases of PyQrack now aim to be semantic over build artifacts.)

**Happy Qracking! You rock!**

**Full Changelog**:
https://github.com/unitaryfund/pyqrack/compare/v1.30.20...v1.30.22
https://github.com/unitaryfund/qrack/compare/vm6502q.v9.9.23...vm6502q.v9.9.28

sha1sum results:
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f556473d0494a602c1e90c995b6e9c3f83b37be7 pyqrack-1.30.22.tar.gz

QBdt` error amortization suffered from an out-of-precision bug; this has been (completely) fixed.

(Note that release number is being considered semantic relative to artifacts.)

**Full Changelog**:
https://github.com/unitaryfund/qrack/compare/vm6502q.v9.9.22...vm6502q.v9.9.23
https://github.com/unitaryfund/pyqrack/compare/v1.30.16...v1.30.20

sha1sum results:
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cb98691c23d528189335230a679c876240ebd858 pyqrack-1.30.20.tar.gz

Various micro-optimizations have been added, including OpenCL kernel optimizations. Because of OpenCL kernel updates, perform the following commands as necessary in the `qrack` repository directory:

bash
$ make clean
$ cmake ..
$ ./qrack_cl_precompile


**Full Changelog**:
https://github.com/unitaryfund/qrack/compare/vm6502q.v9.9.13...vm6502q.v9.9.22
https://github.com/unitaryfund/pyqrack/compare/v1.30.15...v1.30.16

sha1sum results:
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adffc30770d521dd2d93f6c0f3bd0aebeca03c8b pyqrack-1.30.16-py3-none-macosx_13_0_x86_64.whl
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ccdd12dc455ddc2ee1b0afe6b8b2842702b56121 pyqrack-1.30.16.tar.gz

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**: https://github.com/unitaryfund/pyqrack/compare/v1.30.13...v1.30.15

sha1sum results:
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7f9dbda41a20006a71d473ed15306490425b6cac pyqrack-1.30.15.tar.gz

Minor improvements have been made to Qrack's random number generator API. Most importantly, 32 divisions have been replaced with 32 multiplications when generating a random float with `Rand()`. Another possible point of improvement is that most-significant bit of the raw random bit stream now corresponds with most-significant bit of `Rand()`, where some devices and services for random number generation will tend to prioritize most-significant bit as slightly less biased for randomness than least-significant.

**Full Changelog**: https://github.com/unitaryfund/qrack/compare/vm6502q.v9.9.8...vm6502q.v9.9.9

sha1sum results:
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678b73c30d00c6106d131eaec4ea2104a3cff739 pyqrack-1.30.13.tar.gz

This release fixes bugs in the observables API of the shared library. (It also fixes 16-bit floating-point builds, but this does not affect the packaged artifacts.)

**Full Changelog**: https://github.com/unitaryfund/qrack/compare/vm6502q.v9.9.7...vm6502q.v9.9.8

sha1sum results:
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