* adds tests for team sharing
* extends the API for team sharing support
* adds shared_teams property shortcut for ShareableObjectMixin
* adds full support for team-based sharing to all views and functions
* simplifies ShareModalForm
* adds/updates translations
* adds team sharing field to share form
* splits sharing logic into user based and teams based
* adds TeamAdmin for admin backend
* adds validity check on Team name -> only unused names shall be valid
* enhances filtering for Autocomplete -> parent_parent will be searched for match as well
* adds rendering of parent_parent group for BiotopeAutocomplete
* enhances ordering of registration office autocomplete
* improves the way parcel-geometry relations are stored on the DB
* instead of a numerical sequence we switched to UUID, so no sequence will run out at anytime (new model: ParcelIntersection)
* instead of dropping all M2M relations between parcel and geometry on each calculation, we keep the ones that still exist, drop the ones that do not exist and add new ones (if new ones exist)
* adds parcel district column for all major data objects
* adds warning about intervention-revocation on index view of compensations
* adds warning about intervention-revocation on detail view of related compensations
* adds more log details on adding/removing documents
* fixes bug in admin backend where restoring of non-compensation entries led to an error
* fixes bug where deleting of revocation without an attached file would lead to an error
* adds log details for adding/removing of compensations for intervention
* adds handy restore-deleted function for admin backend for alls BaseObject derivatives
* adds/updates translations
* adds support for payment adding/deleting to intervention log
* adds support for deduction adding/deleting to intervention/ecoaccount log
* improves code snippets
* drops add_deduction() methods for ecoaccount and intervention in favor of simpler creation in NewDeductionModalForm
* adds messages
* adds/updates translations
* removes admin backend views which are not important for production
* adds filtering functionalities on index views
* simplifies detail views on intervention, compensation, ecoaccount and ema
* adds autocomplete fields on detail views
* adds handy horizontal filter fields on detail views
* extends the detail view templates for all compensation related models to render extra CompensationState details as well
* reduces number of landing page news from 4 to 3
* improves .card-text in favor of .scroll-150
* improves .card font size
