`.fwknoprc.d` directory

[enspritz]

Feature request: Like other UNIX-y software, a .fwknoprc.d that complements the existing .fwknoprc file.
Notionally, the resulting configuration file would be identical to (modulo the order of files read):

$ cat ~/.fwknoprc ~/.fwknoprc.d/*

The value is that automated tooling that isn't fluent in the .ini file format can bulk add/replace/delete entries (files) under ~/.fwknoprc.d/. Errors would also be contained to each such file, thereby removing all risk of automated mangling of our precious ~/.fwknoprc files.