This is being used for other products, e.g. USB4 docks.
If non-Intel firmware is being used (e.g. ASMedia) then the explicit
calls to `fu_intel_thunderbolt_nvm_new()` can be changed to something
like `fu_firmware_new_from_gtypes()` with all the formats listed.
The firmware from both Dell and Lenovo actually blocks this, but the
error message is pretty confusing.
```
$ sudo fwupdtool set-bios-setting SecureBoot Disable
17:39:40:0249 FuBiosAttrs KERNEL BUG: thinklmi doesn't export a 'type' attribute
Loading… [- ]
failed to write 7 bytes to 17: Invalid argument
```
We only had to pile everything into the src/fuzzing/firmware directory
because honggfuzz could not cope with more than one input path.
This way each plugin is self contained and easy to copy.
Also, install the fuzzing builder objects as this fixes the installed
tests when srcdir does not exist.
Based on a patch by Jan Tojnar <jtojnar@gmail.com>, many thanks.
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.
