* Adapt the PQM3 Multiplatform & Scheme Discovery to PQM4

* Add HAL support for CW308T-STM32F3

* Adapt platform interfaces

* Implement simplified platform running interface

* Simplify chipwhisperer interface

* Fix for systems without the GNU findutils

* Add the mps2-an386 platform, which is also supported by QEMU

* Speed up scheme search

* Skip scheme list generation if IMPLEMENTATION_PATH is given

* Optionally push all data/bss into the "flash" portion of the MPS2

The flash is actually just a RAM. The main purpose of the board here is stack
testing and this will allow us to use all 4MB of the "ram" memory region for
stack/heap.

* Implement stack size querying

* Don't capture stdin for QEMU platforms

* Fix argument parsing for benchmarks

* Add possibility to run QEMU benchmarks directly from make

* Fix scheme list generation

* Remove automatic call to git

* Add some comments for the scheme finding mechanism

* Add the possibility for scheme specific makefiles

* Clean up makefiles

* Generate a skiplist for each platform

* Move reusable buildsystem and interface code to mupq

* Move randombytes implementation to hal for testvector test

* Make all-in-one compilation the default

* Document the new platforms in the README.md

* Update mupq

* Add _sbrk wrapping to opencm3

* Update mupq

* adjust pqm4 to run multiple iterations in a single binary

* Always add LTO flag

* Update mupq

* Reorganize symmetric crypto sources

* Include HAL and crypto sources in AIO compilation

* Fix LTO compilation

* Use existing linker script if present

* Update mupq

* Don't use the nano libc (worse performance)

* Fix compilation for self-tests

* Quick-fix build error for bikel1 on mps2-an386 platform

* Update benchmarks

* Use full ram for some frodokem schemes

* Fix compilation on mps2-an386 platform

* Update skip_list.py

* switch to mupq master

Co-authored-by: Matthias J. Kannwischer <matthias@kannwischer.eu>