* Update NTRU

version: https://github.com/jschanck/ntru/tree/485dde03

* Fixed ntruhrss701/clean/Makefile.Microsoft_nmake

See also #305

NIST announced the Round 3 finalists and alternate candidates today:
https://groups.google.com/a/list.nist.gov/d/msg/pqc-forum/0ieuPB-b8eg/Cl7Ji8TpCwAJ

Some of the schemes in PQClean did not make it to Round 3 and this commit
removes them.

* Add AVX2 version of mqdss

* Fix duplicate consistency

As identified in: Qian Guo, Thomas Johansson, Alexander Nilsson. A 
key-recovery timing attack on post-quantum primitives using the 
Fujisaki-Okamoto transformation and its application on FrodoKEM. In 
CRYPTO 2020.

Based on 
155c24c3df

* don't do filesystem operations during collection

* Greatly speed up test collection

* fixup! Greatly speed up test collection

* Silence junit warning

* fixup! Greatly speed up test collection

NewHope announced a new version of their specification that adds
explicit domain separation. This is a port of
https://github.com/newhopecrypto/newhope/commit/607a9d3

Based on this change:

00608d7610

* 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>

https://github.com/mupq/pqm4/issues/132 repoorted that the NewHope verify function does not actually return 0 or 1, but 0 or -1, which consequenctly breaks the cmov in the FO transform.
This bug was introduced when I integrated this into PQClean.

[skip ci]

* Clean up the docs a bit

* Document that qemu-user-static needs Linux

Lots of shifts left of signed integers