Add option to submit VAT data to Summitto

[michielbdejong]

No description provided.

[michielbdejong]

@Triantafullenia-Doumani you can use the summitto-integration branch for this

[michielbdejong]

root@cloud:/var/www/html/apps/peppol-php# git status
On branch summitto-integration
Your branch is up to date with 'origin/summitto-integration'.

Untracked files:
  (use "git add <file>..." to include in what will be committed)
	nextcloud-app/peppolnext/vendor/

nothing added to commit but untracked files present (use "git add" to track)