This allows us to override the location we load data files from, which
allows us to do more kinds of installed tests in the future.
Also, move the global data/tests content into the place that it is used
as it was getting impossible to manage.
This prevents problems when cross compiling. Using help2man is now also of
limited use; if we can just tell the user to use --help we do not need to keep
the manual in sync.
It also allows us to drop the several other supporting files that we use when
the help2man output isn't actually that useful.
Fixes https://github.com/fwupd/fwupd/issues/3025
This has better multi-core performance and can run in persistent mode -- which
allows us to construct a test harness of all the parsers (which takes time) and
then just reuse the process for lots of different data.
To do this mount all ESP partitions and check all the binaries there to see if
they match any entries in the new dbx. If we applied the update when a hash
matched, we would unintentially 'brick' the users machine, as the grub and shim
binaries *have* to be updated first.
This functionality does reimplement the PE hashing functionality found in
sbsigntools and pesign. This was done for 4 main reasons:
* There were some memory safety issues found when fuzzing random binaries
* Executing the tools hundreds of times was a lot of overhead
* Operating from a blob of immutable mmap'd memory is much faster
* We only need a very small amount of functionality from both tools
