* Sebastian's HQC merge request

* Clean up changes to common infrastructure

* Fix Bitmask macro

It assumed that ``unsigned long`` was 64 bit

* Remove maxlen from nistseedexpander

It's a complicated thing to handle because the value is larger than size_t supports on 32-bit platforms

* Initialize buffers to help linter

* Add Nistseedexpander test

* Resolve UB in gf2x.c

Some of the shifts could be larger than WORD_SIZE_BITS, ie. larger than
the width of uint64_t. This apparently on Intel gets interpreted as the
shift mod 64, but on ARM something else happened.

* Fix Windows complaints

* rename log, exp which appear to be existing functions on MS

* Solve endianness problems

* remove all spaces before ';'

* Fix duplicate consistency

* Fix duplicate consistency

* Fix complaints by MSVC about narrowing int

* Add nistseedexpander.obj to COMMON_OBJECTS_NOPATH

* astyle format util.[ch]

* add util.h to makefile

* Sort includes in util.h

* Fix more Windows MSVC complaints

Co-authored-by: Sebastian Verschoor <sebastian@zeroknowledge.me>
Co-authored-by: Thom Wiggers <thom@thomwiggers.nl>

* Move test support files into tests directory

* Fix common tests dir in test

* Fix Windows Makefile for common tests

* notrandombytes.obj should be in TEST_COMMON_DIR

clang-format was not flexible enough to allow lining out things on
columns with spaces.

The previous formatting did not immediately stabilize,
and the resulting formatting is somewhat arbitrary.
Manually inserting linebreaks seems to make more sense.