Split the building of the fileinfo record from the writing
of the record so the building can be called from other code.
Specifically the new filestore output which uses fileinfo
records as the metadata.
As the logging modules are no longer threading modules, rename
them so they don't look like they are being registered as
threading modules.
Also, move the registration to the output.c which will handle
registration of the loggers.
- restore json output-file.[ch] as output-json-file.[ch] after rebase conflict
- fix Makefile.am after merge conflict
- some dev-log-api-v4.0 rebase json fallout cleanup