[ADD] git ignore file
Merge pull request #5 from numerigraphe/8.0-gitignore

[ADD] git ignore file
[ADD] l10n_fr_naf_ape, l10n_eu_nace

Modules moved from the OCA repository community-data-files, keeping their revision history.
First step to fix #1 .
The modules are not actually ported to v8, so I moved them to `__unported__` just to make it clear this is the project where they should live from now on.