Audit log store

Closes #553 (closed)

What does this MR do?

Adds logging for store actions.

not logged - are changes to pickupslots.

How confident are you it won't break things if deployed?

quite only function call's added manual tests successfull

Links to related issues

Checklist

Additional Checks for this Merge:

• data privacy has been updated
• Tables created

usual checks

• added a test, or explain why one is not needed/possible...
• no unrelated changes
• asked someone for a code review
• joined #foodsharing-beta channel at https://slackin.yunity.org
• added an entry to CHANGELOG.md (description, merge request link, username(s))